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- code-geass-lelouch-of-the-rebellion-25 description "After managing to capture Cornelia, Lelouch forces her to reveal what little information she knows of Marianne's murder, but the answers do not please him one bit. V.V. takes Nunnally to Kaminejima, and Lelouch abandons the Black Knights to rescue his sister. Without Lelouch, the Black Knights begin to lose ground to the Britannian Army. Suzaku follows Lelouch, leading to a final confrontation between the former friends. ".
- code-geass-lelouch-of-the-rebellion-3 description "Lelouch confronts Clovis about the murder of his mother, Marianne vi Britannia, before killing him. When he returns to Ashford Academy, he discovers that Kallen Kōzuki, one of the terrorists he helped in Shinjuku, attends the same school. The limitations to his newfound power are also revealed to him when he attempts to question her then erase her memory, so he creates a cunning deception to ease her suspicions of his identity. When the death of Prince Clovis is announced in the media, it is Suzaku Kururugi who is accused of the murder.".
- code-geass-lelouch-of-the-rebellion-4 description "The Purist faction within the Britannian Army scapegoats Suzaku for Clovis' death, planning to use him as an excuse to rid the army of Honorary Britannians. Lelouch concocts a plan to save his childhood friend, with some help from Kallen and Kaname Ohgi, leader of Kallen's resistance group. Announcing himself publicly as Zero, Lelouch declares it was he who killed Clovis, and uses his power on Jeremiah Gottwald to force him to assist in Suzaku's rescue. In private, Lelouch offers Suzaku the opportunity to turn against Britannia for falsely accusing him, but Suzaku refuses, wishing to change the Empire from within. ".
- code-geass-lelouch-of-the-rebellion-5 description "To Lelouch's surprise, C.C., the girl who gave him his power, is alive and now living in his residence. Suzaku, having been acquitted of all charges, accidentally meets Third Princess Euphemia li Britannia and ends up intervening in an internal Purist faction struggle. Meanwhile, Second Princess Cornelia li Britannia endeavors to take charge of Area 11 as Viceroy and bring Zero, now the Empire's number one enemy and most wanted man, to justice. ".
- code-geass-lelouch-of-the-rebellion-6 description "Suzaku transfers into Ashford Academy and faces the scorn of the Britannian students. Cornelia continues her hunt for Zero, destroying several rebel strongholds but finding no clues to his whereabouts. A stray cat slips into the Lamperouge residence on campus and takes off with Lelouch's Zero mask and a massive, comedic chase involving the entire student body follow. The Emperor of Britannia makes a speech during Prince Clovis' funeral on the virtues of inequality and the social battle for evolution and betterment. ".
- code-geass-lelouch-of-the-rebellion-7 description "Cornelia sets a trap for Zero at the Saitama Ghetto as she begins to clear another resistance cell. Despite C.C. trying to stop him, Lelouch takes the bait and goes to the aid of the Saitama resistance. His plan falls apart from a combination of Cornelia's superior tactics and the resistance cell's dissimilar motivations. Lelouch is cornered and nearly discovered, but C.C. dons his Zero costume and distracts the Britannian Army, allowing Lelouch to escape. Lelouch blames his defeat on the undisciplined rebels and resolves to build something better than a mere resistance unit. ".
- code-geass-lelouch-of-the-rebellion-8 description "A group from the Japan Liberation Front takes a hotel and its occupants hostage, including most of the Ashford Student council and a disguised Princess Euphemia. As such, Princess Cornelia cannot make a move against the hostage takers, which Lelouch realizes and takes advantage of. He mounts a rescue with Ohgi's resistance, using his knowledge of Euphemia to barter his way past Cornelia's blockade. As Lelouch speaks with the hostage takers, Suzaku sinks the floating hotel using the Lancelot. Using explosives set up by the resistance fighters, Lelouch derails any rescue efforts by the army so he can take credit for their rescue. Broadcasting publicly to the nation, he announces the creation and purpose of his Order of the Black Knights, "allies of justice" who will judge the world and protect the weak from "those with power". ".
- code-geass-lelouch-of-the-rebellion-9 description "Told mostly from Kallen's perspective, her rocky relationship with her biological mother is revealed. The Black Knights are sent on a mission to take out the drug "Refrain", and find themselves to be popular among the Elevens. Kallen's mother is found among the Refrain users, and is arrested following the Black Knights' destruction of the drug stockpiles. Kallen promises to have changed the world by the time she is released. ".
- code-geass-lelouch-of-the-rebellion-r2-1 description "One year after the Black Rebellion, Lelouch Lamperouge has resumed his normal school life with no apparent memories of the year before. After skipping remedial gym class, he sets off with younger brother Rolo to gamble at Babel Tower. Led by C.C., the Order of the Black Knights launches an attack on the complex to retrieve Lelouch. C.C. reawakens Lelouch's memories, and he resumes his identity as Zero. Suzaku Kururugi declares to the Emperor that he will personally kill Zero. ".
- code-geass-lelouch-of-the-rebellion-r2-10 description "Lelouch successfully escapes with Empress Tianzi and the Black Knights attempt to unite with their Indian allies. Desperate to recover the Empress, the Eunuchs agree to forgive Li Xingke if he rescues her. To that end, he is granted use of the powerful Shenhu. Kallen intercepts him with the Guren Flight-Enabled Version, but its power runs out and she is taken hostage. Lelouch swears to rescue her, despite Diethard Reid's suggestion to retreat. Xingke demonstrates his skill as a strategist, forcing the Black Knights to retreat to a mountainside monument constructed as the tomb for the former Tianzi, hoping the Federation would be hesitant to attack. The Eunuchs turn on Xingke and his troops, having enlisted the aid of the Britannian forces. Meanwhile, another Lelouch is present at the Ashford Academy. ".
- code-geass-lelouch-of-the-rebellion-r2-11 description "Back at Ashford Academy, Sayoko Shinozaki is posing as Lelouch. Realizing the Eunuchs are not interested in saving Tianzi, Li Xingke rebels. As the Black Knights hold their ground against the Chinese Federation and Britannian forces, Zero tries to reason with the Eunuchs, who openly admit their treachery. When Xingke tries to shield Tianzi from the fighting, Zero personally enters into the field with his new Shinkirō Knightmare Frame. Diethard hacks into the Chinese media network and replays the Eunuchs' deceit, igniting riots across China. Faced with open rebellion, Schneizel orders a Britannian retreat and Xingke eliminates the Eunuchs and rescues his comrades. However, Kallen and the Guren have been handed over to Britannia. With the Eunuchs dead, Zero forges an alliance with Xingke and Tianzi. Lelouch returns to Ashford Academy, and is surprised to find Anya and Gino enrolled as students. ".
- code-geass-lelouch-of-the-rebellion-r2-12 description "Lelouch is shocked that Sayoko has made him into a playboy. As he tries to work out a way to undo the damage, Milly declares Cupid Day, where any girl can become a boy's girlfriend by stealing his hat. Rolo and Sayoko help Lelouch avoid the female students trying to catch him. Alone, Lelouch and Shirley discuss recent events and trade hats. Elsewhere, Knight of One Bismark Waldstein informs the Emperor of a meeting between the princes and princesses about waging war against the Chinese Federation, where Schneizel decides threats and negotiation will work better than open war. Cornelia, determined to reveal the existence of Geass in order to clear Euphemia's name, confronts General Bartley, who begs her to help them, saying the Emperor's recent actions may destroy the world. While Suzaku and Lloyd discuss on the Guren, Nunnally visits Kallen in prison. Jeremiah arrives in Area 11 and uses his newly-acquired Geass Canceller on Shirley, restoring her memories of Zero's identity. ".
- code-geass-lelouch-of-the-rebellion-r2-13 description "Having recovered her memories, Shirley questions her perception of reality. Lelouch heads to the train station to check on the delivery of a G Train, a network of Gefjun Disturber-equipped trains that will black out all of Tokyo once active. Meanwhile, Jeremiah makes his move on Ashford Academy, overwhelming Sayoko and Rolo in his search for Lelouch. Villetta willingly reveals Lelouch's location and Jeremiah corners him, but is paralyzed by the G Train. Struggling, Jeremiah asks why Lelouch betrayed the Emperor, to which the former prince reveals his motivation to avenge his mother. Having greatly admired Marianne, Jeremiah joins Lelouch's cause. Shirley finally reconciles her restored memories, asking Suzaku to forgive Lelouch as she has. Before she can reach Lelouch, she runs into Rolo, who uses his Geass once she reveals knowledge of Nunnally. As Lelouch leaves, he discovers Shirley mortally wounded, who confesses her feelings for him as he desperately commands her to live. ".
- code-geass-lelouch-of-the-rebellion-r2-14 description "Rolo admits to causing Shirley's death; rather than blame Rolo, Lelouch blames the existence of Geass itself. In retaliation, he mounts an assault on the Geass Directorate, slaughtering every man, woman, and child within the stronghold. V.V. pilots the Siegfried in an effort to stop the Black Knights, but is defeated by both Lelouch and Cornelia. He escapes to the Thought Elevator, where Charles awaits, and when Lelouch follows he is transported to the Sword of Akasha. Meanwhile, Kallen and Nunnally discuss Lelouch. They are interupted by Suzaku, who, despite having been told that Shirley's death was a suicide, decides to interrogate Kallen using Refrain, in order to confirm his suspicion that Lelouch has become Zero again. ".
- code-geass-lelouch-of-the-rebellion-r2-15 description "Suzaku realizes he cannot stoop to Lelouch's level to achieve his goals and decides not to use Refrain on Kallen. Instead, he heads to Ashford, where he discovers the Intelligence Agency is under Lelouch's control. Ohgi and Villetta meet in the woods, where Villetta intends to kill him, but Ohgi confesses that he has fallen in love with her. Sayoko interrupts and attempts to dispatch Villetta, and Ohgi is injured in the struggle. He tumbles off a cliff and Villetta jumps after him. Nina and the In Vogue staff make their first successful nuclear bomb test. Lelouch confronts the Emperor atop the Sword of Akasha. He learns the Emperor has taken V.V.'s "Code," which has made him immortal. C.C. appears and reveals to Lelouch her wish is to die, then transports him to "C's World" to ensure his safety, where he witnesses her past. Upon realizing her true wish, Lelouch returns to reality, proclaiming he shall be the only one to grant her wish. He attacks the Sword of Akasha with the Shinkirō and rescues C.C., only to find she has lost all her memories except those before receiving the power of Geass. ".
- code-geass-lelouch-of-the-rebellion-r2-16 description "Forty-seven countries rally under the banner of the new United Federation of Nations, and their first declaration is to declare war on Britannia to liberate Japan. In anticipation, the Knights of Rounds and the bulk of Britannia's military force are transferred to Japan. Nina also asks to have the Lancelot equipped with her newly-developed F.L.E.I.J.A. (Field Limitary Effective Implosion Armament) bomb. The Emperor interrupts the Federation's announcement to challenge Zero to a battle for the world itself, since they are the only remaining powers in the world. Fearing for Nunnally's safety, Lelouch calls Suzaku and admits he's Zero, then begs Suzaku to rescue her. Suzaku agrees, but only on the condition that Lelouch meet him alone at the Kururugi Shrine. ".
- code-geass-lelouch-of-the-rebellion-r2-17 description "The battle for Japan gets underway, and it does not start out well for the Black Knights. Luciano and Bismark decimate their ranks, with only Li Xingke to keep them at bay. Suzaku and Lelouch meet to discuss Nunnally. After some initial animosity, Lelouch manages to win Suzaku over. However, Schneizel has his personal guard arrest Lelouch, making Lelouch believe Suzaku has betrayed him. Schneizel and Lelouch have a private chat, and Lelouch is rescued by none other than Guilford, having used his Geass on Guilford beforehand to make him believe he is Cornelia. Using the Gefjun Disturber train network, Lelouch shuts down the Tokyo Settlement. At the same time, his reinforcements emerge from the ocean, ready to take advantage of the opportunity. Meanwhile, the Emperor is preparing for Ragnarök. ".
- code-geass-lelouch-of-the-rebellion-r2-18 description "With the power disrupted, the Black Knights begin their assault on the Tokyo Settlement. Suzaku threatens to use the F.L.E.I.J.A. bomb, but Lelouch, having completely lost his trust in Suzaku, calls his bluff. Jeremiah and Guilford engage Suzaku, but Gino and Anya join the fray to even the odds. Sayoko frees Kallen while Rolo attempts to locate Nunnally, secretly intending to kill her. Lelouch is nearly killed by Luciano and his Valkyrie Squadron, until Kallen arrives in the upgraded Guren Seiten Eight Elements-Type. Meanwhile, the Emperor enters Area 11, and Cornelia escapes confinement. Using the new Knightmare's overwhelming speed and power, Kallen kills Luciano and severely cripples the Lancelot. On the verge of death, Suzaku's Geass command activates and compels him to fire the F.L.E.I.J.A. Unfortunately, the bomb detonates over the government complex, obliterating a massive section of the settlement. Lelouch has a nervous breakdown when Rolo tells him Nunnally is killed in the explosion. ".
- code-geass-lelouch-of-the-rebellion-r2-19 description "A ceasefire is called so Schneizel can meet with the leaders of the Black Knights, but Lelouch is too devastated to attend. Schenizel reveals the truth about Lelouch and his Geass, as well as the many people he has used it on; a recording from Lelouch's meeting with Suzaku solidifies the evidence. In exchange for Japan's independence, the Black Knights agree to betray Lelouch. Unable to escape, Lelouch tells Kallen he was using her all along to keep her from sharing his fate, but whispers that she should live on within earshot. Lelouch is prepared to accept death, until Rolo, piloting the Shinkirō, rescues Lelouch and escapes the combined forces of the Black Knights and the Britannians. However, the excessive use of his Geass required to do so overtaxes his heart and dies after flying Lelouch to safety. Lelouch resolves to not waste the life given to him by Rolo, declaring he will kill the Emperor by his own hand. ".
- code-geass-lelouch-of-the-rebellion-r2-2 description "Lelouch directs the Black Knights in a counterattack against the Britannian forces and recalls how he came to forget his past: after Suzaku arrested him and brought him back to Britannia a year ago, the Emperor used his Geass to implant false memories in Lelouch's mind. The new Knightmare Frame prototype Vincent arrives and wreaks havoc on the Black Knights. They collapse Babel Tower to retreat, simultaneously dropping it on Viceroy Carares and creating a road straight to the Chinese Federation Consulate, where the Black Knights escape to. Zero broadcasts his plan to recreate the United State of Japan. The Britannian military retreats, but the pilot of the Vincent, Rolo, is not so easily swayed. After arriving at the consul grounds, he confronts Li Xingke, revealing that he too possesses the power of Geass. ".
- code-geass-lelouch-of-the-rebellion-r2-20 description "As the Emperor prepares to begin Ragnarok, Lelouch and Suzaku head to Kaminejima to face him. No longer restrained by his notions of wrong methods being meaningless, Suzaku strikes a deal with Schneizel to become the Knight of One, in exchange for assassinating the Emperor. Lelouch, using his Geass to its full potential, compels much of the Britannian military on the island to follow his commands. Meanwhile, the leaders of the Black Knights decide to declare Zero dead, as the truth will be far more difficult to swallow, but their story is doubted by others. Anya's mind is taken over by Marianne, who restores C.C.'s memories. The two begin to put their own plans into motion. At Kaminejima, Suzaku is held at bay by Bismarck, while Lelouch marches into the Sword of Akasha, through the Thought Elevator, unopposed. Knowing he cannot kill his father, Lelouch destroys the entrance, planning to seal them both inside for eternity. ".
- code-geass-lelouch-of-the-rebellion-r2-21 description "Within the Sword of Akasha, Lelouch learns the truth about his mother's death from the Emperor and Marianne herself. The two reveal their intention to create a gentle world without lies, and begin Ragnarok. Lelouch almost reconciles with them, but changes his mind when he realizes that the world the Emperor desires has no future. Evolving his Geass to its next level, Lelouch defeats the Emperor with the help of the collective unconscious mind of every human, the personification of the "gods" the Emperor sought to defeat, dissolving both him and Marianne into dust. With Ragnarok ended, Lelouch takes up the throne as the new Emperor, using his Geass to make all the dissenters in the court acknowledge him as such. Suzaku is appointed as his new "Knight of Zero," while C.C. looks on from the shadows. ".
- code-geass-lelouch-of-the-rebellion-r2-22 description "Lelouch begins his reformation of Britannia, abolishing the aristocracy and Area system. The Knights of Rounds attempt to remove Lelouch from power, but Suzaku, piloting the Lancelot Albion, easily obliterates their ranks, killing Bismarck Waldstein and two other Rounds members while only disabling Gino's Knightmare. His position secure, Lelouch announces his intention to join the U.F.N. On the way to the meeting, he and Kallen bid each other farewell after she kisses him, Kallen having been unable to get Lelouch to answer any of her questions. When the UFN demands that he accept a limit to his voting power to prevent Britannia from attaining an automatic majority, Lelouch forces their hand by having Suzaku take the U.F.N. leaders hostage and Britannia's military surround Japan. During the commotion, the Britannian capital is obliterated by Schenizel, who is aboard his new flying fortress, the Damocles. He reveals to Lelouch that Nunnally is alive, and she declares herself to be Lelouch and Suzaku's enemy. ".
- code-geass-lelouch-of-the-rebellion-r2-23 description "Schneizel unveils his plan to position the Damocles in such a way as to strike every warring nation in the world, thus enforcing peace through the threat of annihilation. Cornelia objects, but is gunned down. Lelouch declares Nunnally his enemy during their conversation, but in private has trouble with the thought of fighting her. With some harsh words from Suzaku and C.C.'s comfort, Lelouch comes to his senses and focuses on his original task. Nunnally, frustrated that she cannot fight or protect anyone, decides to shoulder the sin of launching F.L.E.I.J.A. herself. Schneizel, backed by the Black Knights and the remaining Knights of Rounds, clashes with Lelouch in the sky above Mount Fuji. Though Lelouch is able to destroy a fair portion of the Black Knights by detonating the sakuradite mines in Mount Fuji, the Damocles remains unassailable and its payload of F.L.E.I.J.A. warheads still looms over him. ".
- code-geass-lelouch-of-the-rebellion-r2-24 description "The Black Knights manage to board the Avalon. Lelouch escapes in the Shinkirō while C.C. holds Kallen at bay long enough for Lelouch to escape. Using Nina's F.L.E.I.J.A. Eliminator, Lelouch and Suzaku successfully break into the Damocles. Believing Lelouch to be trapped, Schneizel sets the Damocles' self-destruct sequence and attempts to leave. However, Lelouch manages to outsmart Schneizel, using his Geass to force him into obedience. Suzaku and Gino battle outside the fortress, with Gino unable to hold out against Suzaku. Using his last attack, Gino takes out the Damocles shields, allowing Kallen to take over. Meanwhile, Lelouch goes to confront Nunnally, who has regained her sight. ".
- code-geass-lelouch-of-the-rebellion-r2-25 description "Lelouch and Suzaku fight for the sake of their promise, the Zero Requiem. Suzaku battles Kallen, while Lelouch confronts Nunnally, his biggest and dearest enemy. ".
- code-geass-lelouch-of-the-rebellion-r2-3 description "Lelouch returns to the Ashford Academy during the broadcast, causing Villeta Nu's Special Division to have doubts he was the Zero on television. Needing information on his sister's whereabouts, Lelouch sets a trap to turn Rolo into his pawn. Gilbert G.P. Guilford, Cornelia li Britannia's knight and acting Viceroy of Area 11, presents an ultimatum to Zero: reveal himself or let the incarcerated Black Knights face execution. Elsewhere, Suzaku leads the Britannian frontlines in the Lancelot in the war against the Euro Universe. Lelouch confronts Rolo, but Rolo's unique abilities allow him to gain the upper hand. ".
- code-geass-lelouch-of-the-rebellion-r2-4 description "Lelouch deduces the nature of Rolo's Geass and convinces Rolo to spare him; in return, he will hand over C.C. Li Xingke confronts the Eunuch Gao Hai and kills him to take command of the consulate. As the deadline approaches, Guilford prepares to execute the captured Black Knights, until Zero appears, challenging him to a duel. Using the same strategy from the Black Rebellion, he collapses the portion of the settlement they are standing on, causing confusion amongst the Britannian military as they are dumped into Chinese territory. While Kallen and the Black Knights rescue the prisoners, Rolo appears in the Vincent to kill Lelouch for his betrayal. However, Lelouch takes a bullet meant for Rolo, giving the youth pause. Lelouch plays on his insecurities about his future and sibling relationship, convincing him to join his cause. ".
- code-geass-lelouch-of-the-rebellion-r2-5 description "Suzaku returns to Ashford Academy to investigate Lelouch. With the Black Knights reassembled, Lelouch plans to lead the resistance while maintaining his façade as a student. A welcoming party is held for Suzaku at the academy, and C.C.'s love of pizza threatens to reveal Lelouch's secret; Kallen arrives to retrieve her but is seen by Villeta. She tells Lelouch how she came with Kaname Ohgi the previous year, and Lelouch uses this information to blackmail her. Alone, Suzaku reveals to Lelouch his goal of becoming the Knight of One, which would allow him complete governing authority over Area 11. To test Lelouch, he allows him to speak with the new Viceroy of Area 11: Nunnally vi Britannia. ".
- code-geass-lelouch-of-the-rebellion-r2-6 description "Rolo uses his Geass to buy Lelouch time to say words of caution to Nunnally without revealing his reawakened memories to Suzaku. Unwilling to fight against Nunnally, Lelouch orders the Black Knights to capture her as she is transported to Area 11 by airship. Successfully boarding the vessel, Zero meets with her and tries to convince that Britannia is using her. Nunnally reveals she volunteered for the position, and states she wishes to continue Euphemia's Specially Administrated Zone of Japan, requesting a bewildered Zero to join her. Britannian reinforcements hinder the Black Knights' assault, and as the airship crashes into the sea, Suzaku manages to save Nunnally, taking her away from Lelouch a second time.".
- code-geass-lelouch-of-the-rebellion-r2-7 description "Nunnally is sworn in as the new Viceroy of Area 11, and reveals her intention to restore the Specially Administrated Zone of Japan. Knowing he cannot go against his sister's wishes, Lelouch slips into a state of depression. Before he relinquishes himself to Refrain, Kallen steps in, reminding him his duty as Zero to realize the dream he gave to the Japanese. An evesdropping Rolo emerges, attempting to persuade Lelouch to abandon his identity as Zero and return to being a high school student. Meanwhile, the Black Knights are under attack by a Britannian naval fleet, led by Suzaku. A glimmer of hope is revealed to Lelouch after he sees fireworks setting off at Ashford Academy. Rushing to the battlefield, he successfully leads the Black Knights to defeat the entire naval fleet and surprise Suzaku by appearing as Zero, announcing his intention to accept Nunnally's offer to join the Specially Administrated Zone of Japan. ".
- code-geass-lelouch-of-the-rebellion-r2-8 description "The Black Knights question Lelouch's decision, and the Britannian Army remains wary of his intentions. In a private conversation with Suzaku, Gino Weinberg, Anya Alstreim, Lloyd Apslund, Cécile Croomy, and Miss Romeyer, Zero requests he be exiled from Area 11 in exchange for delivering one million participants. The Britannians think he is abandoning them to ensure his own safety, and accept. At the opening ceremony, Zero asks Suzaku what it means to be Japanese, to which the Knight of Seven replies it is a shared heart. When every participating Eleven dresses as Zero on cue, Suzaku has no choice but to exile all one million "Zeroes", unwilling to start another massacre in the face of their peaceful resistance. ".
- code-geass-lelouch-of-the-rebellion-r2-9 description "Lelouch learns that the Chinese Empress Tianzi is being forced into a political marriage to First Prince Odysseus u Britannia. The wedding is orchestrated by the High Eunuchs, who will become nobility in Britannia in exchange for turning over half their land to Second Prince Schneizel el Britannia. As the wedding begins, Li Xingke initiates a coup-d'état to overthrow the Eunuchs, but before he can free the Empress, Lelouch appears and takes her hostage. Elsewhere, V.V. prepares to unleash Jeremiah Gottwald against Lelouch and C.C. ".
- code-lyoko-1 description "Milly and Tamiya are doing a report on the school prom. They try to interview Sissi, who was prom queen last year, but she turns them down and makes fun of their age. Milly tries to ask Ulrich out, and he turns her down because he's going to the dance with Yumi. Upset, Milly storms off. In her room, she tells Tamiya that she hates everyone, with X.A.N.A. listening from her computer. When Milly tells her teddy bear that she wishes she were bigger and leaves it in the garden shed, X.A.N.A. possesses it and uses it to attack those who had made fun of her. It then increases the teddy bear's size to roughly two stories and sets it on the town. Since Ulrich had to protect the school and warn Yumi, it's up to Odd go to Lyoko and help Aelita deactivate the tower and protect the rest of the town from the rampaging teddy bear. After a return to the past, Milly asks Ulrich to the dance again, and Ulrich says yes, embarrassing Sissi. ".
- code-lyoko-10 description "After Jeremie makes another failed attempt to materialize Aelita, a student named Taelia arrives at school that looks exactly like her. Jeremie is convinced that it must be her, but she seems to have no memory of her experiences with the group. The others aren't quite as convinced, but Jeremie insists that the materialization process must have caused her to lose her memory, but the others were right. Aelita was, in fact, still on Lyoko and captured by the Guardian. Meanwhile X.A.N.A. possesses the samurai armor that Yumi brought to school and sets it on the group to chase Yumi. Jeremie brings Taelia with him to the factory. Now Odd and Ulrich must free Aelita and deactivate the tower before Yumi is defeated by the possessed samurai and Jeremie is taken away by the police. ".
- code-lyoko-11 description "X.A.N.A. possesses a rat that tries to sneak a bite from the school's kitchen. His creation goes on biting other rats, putting them under his control. Meanwhile, the school counselor has been watching Jeremie and believes him to be a gifted student. As such, he believes that Jeremie would be better off at a more advanced school and decides to give him an aptitude test. During the test, X.A.N.A.'s rat army attacks the school. ".
- code-lyoko-12 description "After failing with an army of rats, X.A.N.A. attempts a similar tactic using hornets. Meanwhile, Ulrich gets a letter from Yumi saying that she loves him. He's not quite sure how to respond, so he avoids talking to her about it. Jeremie and Odd find out about the note, but don't learn who wrote it. Ulrich tells them not to tell Yumi. After learning about the hornets and X.A.N.A.'s control over them, the group heads for the factory. Ulrich talks to Yumi about the note and tells her that he feels the same way, only to find out that it was Sissi who wrote it. In Lyoko, Ulrich's reaction to the discovery leaves his performance lacking as the hornets move on the school. ".
- code-lyoko-13 description "Taking a different approach to his research, Jeremie materializes a single hair of Aelita's. Unfortunately, the follow-up test goes awry, and Jeremie has to find out why. Meanwhile, different parts of the school begin to crumble apart. Jeremie learns that his first test damaged Aelita's program, and she'll be deleted if she tries to deactivate a tower. On top of that, they learn that X.A.N.A. is responsible for the damage being caused to the school by using ultrasonic sound waves, which continues to get worse. Jeremie has to fix the damage he caused in time to save Odd, who ends up trapped inside the school with Milly, Tamiya, and Kiwi. Unfortunately, after two tries, both ending in failure, Aelita, with the help of Yumi and Ulrich, has to deactivate the tower or else Odd, Milly, Tamiya, and Kiwi will be done for. After the return back in time, Yumi remembers that Jeremie said that the hair contained Aelita's entire computer code. Jeremie places the hair in the scanner, virtualizes it to Lyoko, and Aelita is inside the tower she deactivated. ".
- code-lyoko-14 description "It's been a year since the group first discovered the supercomputer and Aelita, and they decide to throw a surprise party for Aelita. Sissi catches wind of the party and follows Ulrich and Yumi to the factory. On the way there, X.A.N.A. possesses the factory as a whole. Jeremie and Odd are the first to arrive at the factory, finding the elevator to be inoperable. They head off to find the fuse box. Once Ulrich and Yumi arrive there, Sissi confronts them about it. They tell her to leave, but X.A.N.A.'s earlier possession allows him to trap all three in the elevator and drop them to the bottom of the shaft. Sissi and Yumi come out okay, but Ulrich's arm is broken in the fall. Meanwhile, Jeremie and Odd have to deal with the possessed factory equipment. Odd, Yumi, and Jeremie are safe and are at the supercomputer room. While Yumi and Odd are getting virtualized, water from the pipelines inside the walls is falling on the elevator, causing it to overflow. While the elevator is halfway filled, Ulrich promises to Sissi that if they make it out alive, he would be nicer to her. When Ulrich and Sissi are about to drown, Aelita deactivates the tower just in time and the return to the past saves them both. Just like Ulrich promised, he is nicer to Sissi at the end. ".
- code-lyoko-15 description "In class, Susan teaches the class about nitrous oxide, more commonly known as laughing gas, and its effects. It can be dangerous if not neutralized by water quickly. Meanwhile, Yumi's parents are having trouble with their relationship, which Yumi isn't too happy about. No one seems to be able to cheer her up, even Ulrich. He eventually manages to do so, however, and helps her find a way to bring her parents back together. During a school production of Romeo and Juliet, X.A.N.A. possesses the laughing gas in the science room and uses it to attack Odd, who is doing the music. Sissi pours water on him, unaware of the cause of his maniacal laughing. When Odd tells the others about his experience, they realize that X.A.N.A. must be behind it. The play turns out to be the perfect way to get Yumi's parents back together, so Ulrich, who is forced into playing Romeo, and Yumi, who plays a guard, stay behind while Odd heads to Lyoko. Just as Odd is about to go in, the X.A.N.A.-possessed gas goes after each member of the group. Odd gets to Lyoko, but the gas goes with him, weakening him severely. Jeremie is chased away from the factory by the gas and is forced to take refuge in the sewer water. Finally, Ulrich and Yumi are attacked during the play. Aelita and a weakened Odd have to get to the tower before the others laugh themselves to death. ".
- code-lyoko-16 description "When a boy named Theo takes an interest in Sissi, Hervé becomes jealous and tries to get him expelled. The situation only gets worse when X.A.N.A. possesses the cafeteria during lunch, trapping most of the students inside its electrified walls. Jeremie and Yumi leave the cafeteria before this takes place. Now Yumi has to get Aelita to the tower by herself before the cafeteria collapses in on itself. ".
- code-lyoko-17 description "When Susan gives a lesson on nanotechnology, she has small machine designed to produce the little robots as an example. Little do they realize that X.A.N.A. has infected the machine, so when they find it filled with gel, Odd carelessly ends up pushing Ulrich's face into a small scoop of it. Later on, Ulrich gets a headache and faints. When he wakes up, his memory is gone. Sissi is there at the time, so she uses Ulrich's memory loss to convince him that she's his girlfriend. As the rest of the group tries to bring him to his senses, more cases of amnesia occurs, spreading from person to person like a disease. Only after most of the school is affected, Jeremie realize that X.A.N.A.'s produced nanotechnology is responsible. Ulrich goes for backup with amnesia until the tower is deactivated. ".
- code-lyoko-18 description "When X.A.N.A. creates an MP3 file that puts anyone who listens to it into a coma, Odd ends up being the first victim. Soon, the rest of the city begins to follow, including Ulrich and Jeremie. ".
- code-lyoko-19 description "When Jeremie yells at Aelita, he tries to go to Lyoko to apologize. Unfortunately, while Yumi is transferring him, she makes a scanner error, which leaves him trapped in a virtual limbo between Lyoko and the real world, so Aelita has to retrieve data to recover Jeremie without support in order to bring Jeremie back, but when she gets to the Mountain Sector, there are a couple of Blocks guarding the tower. Yumi is sent to retrieve Jeremie's laptop to virtualize Ulrich, but gets caught and ends up in the principal's office. Ulrich talks to Sissi to see if she could get Yumi off the hook; Sissi agrees, but only if Ulrich will go out with her for a month. Ulrich agrees on one month and kisses her as a down payment. ".
- code-lyoko-2 description "Jean-Pierre lets Odd begin casting for a traditional rock band called the Pop Rock Progressives. They need a drummer, and several try out for the position, including Nicolas. Nicolas turns out to be the best, but Odd doesn't want anything to do with him. Meanwhile, X.A.N.A. tries to overload a nuclear power plant by storing electricity in a transformer and unleashing it on the plant all at once. Unsure if they can stop such an event, the group votes, and, by a 3 to 2 vote, they decide to tell the authorities. Yumi goes to inform them while the others stay behind to deal with X.A.N.A. Now they must deactivate the tower before the city is turned into a nuclear wasteland. Not only that, they also have to do so before the authorities find out about the supercomputer. In the end, the tower is deactivated and, after a return trip, Nicholas and Jim are added to the Pop Rock Progressives. ".
- code-lyoko-20 description "During a school robot competition, X.A.N.A. sends a robot of his own to deal with the group. Ulrich and Yumi are forced to enlist Hervé's help to destroy it while Jeremie and Odd head to the factory to deactivate the tower. ".
- code-lyoko-21 description "Just before an official school soccer game, X.A.N.A. starts nullifying gravity by creating electromagnetic fields around specific areas. Ulrich is unable to help stop X.A.N.A. this time around, instead needing to impress his parents, who will be attending the game. The others have to stop X.A.N.A. before the entire school is sent into orbit. ".
- code-lyoko-22 description "After many X.A.N.A. attacks in a row, Ulrich starts to get tired of fighting X.A.N.A. On top of that, he questions his relationship with Yumi and if she feels the same way about him. He begins to hang around a girl named Emily, and Yumi gets jealous, causing a great fight between the group. When X.A.N.A. activates a tower without disturbing Earth, Jeremie forces Ulrich, Odd, and Yumi all to go to Lyoko to deactivate the tower. After being virtualized, a virus infection occurs on Lyoko because X.A.N.A. sabotages the Devirtualization Program, meaning if the group is devirtualized, they will permanently vanish and perish. ".
- code-lyoko-23 description "During a vacation period at the school, the group plans to have a party at Yumi's house. Odd promises to have a DJ at the party. This DJ, named Samantha Knight, is also his girlfriend, who goes to another school. After meeting up, she has Odd take her to the computer room. Once they arrive, she tries to steal a laptop, since she's too poor to afford one. Odd stops her, but ends up being caught by Jim. Meanwhile, X.A.N.A. causes the ground under the city to melt, making all the buildings sink. ".
- code-lyoko-24 description "After another successful battle against X.A.N.A. and another return trip, Ulrich, Odd, and Yumi are nowhere to be found. They, however, do not see anything wrong with where they are. X.A.N.A. has trapped them in a world of its own design, which is fashioned after the school to ease their suspicions. Meanwhile, in the real world, Jeremie is being questioned on the group's disappearance. However, the world that Ulrich, Odd, and Yumi are in appears to have some glitches in it. Jeremie finds that this world can be accessed through the scanners, and after a near-death with X.A.N.A.'s virtual zombies, Aelita manages to save them. ".
- code-lyoko-25 description "Jeremie finally completes his materialization program and prepares to bring Aelita into the real world. At the same time, Jim's suspicions of the group have risen to the point that he's actively trying to discover their secret and he ends up causing Jeremie to injure his ankle while running away from him down stairs in the school. ".
- code-lyoko-26 description "Aelita's materialization program has worked, and she's now living on Earth, but not all is well. When Jeremie pulls the plug, Aelita faints. Jeremie believes that a virus was given to her by X.A.N.A. while he was bringing her to Earth in the previous episode, which has linked her to the supercomputer, preventing the group from shutting it off. Furthermore, X.A.N.A. brings his Roachters into the real world in mass numbers and unleashes them on the school. ".
- code-lyoko-27 description "After discovering Aelita's link to the supercomputer and the inability to shut off the supercomputer that stems from it, Jeremie works hard to find new and better ways to fight Xana. To that end, he develops new vehicles for the group. He also develops a new tower-scanning program that instantly detects activated towers, allowing Aelita to live on Earth. While adjusting to her new life, the class takes a trip to the nearby woods for a scientific field trip. Ulrich wants to partner up with Yumi, but she's already partnered up with someone named William.".
- code-lyoko-28 description "While Aelita adjusts to her new life on Earth, Jeremie and the others investigate the mysterious owner of the Hermitage, Franz Hopper, and his link to the supercomputer, Lyoko, and Xana. It is discovered that Franz Hopper was in fact a former teacher at Kadic. After being teased by Sissi, Aelita retreats to Lyoko but gets lost. Jeremie finds her in a previously undiscovered fifth sector of Lyoko, The Carthage Region. ".
- code-lyoko-29 description "After discovering The Carthage Region, the group decides to explore it. Yumi is forced to opt out after her continued late-night trips to Lyoko draw the attention of her parents. While on The Carthage Region, Ulrich and Odd get dematerialized but don't appear in the real world, so Yumi sneaks out of the house to go to Lyoko and rescue Aelita from the Scyphozoa while Jeremie searches for a way to recover Odd and Ulrich. Unfortunately, Yumi's parents discover that she is missing and alert the school, who in turn discover that the other four are missing as well. ".
- code-lyoko-3 description "After Jeremie and Ulrich paint graffiti portraying Jim in a less than favorable light on a wall in order for Jeremie to remain at school during a vacation, Sissi overhears him talking with the others about his reasons for doing so: Namely to watch X.A.N.A. She gets her father to let her stay there during the vacation so she can discover the group's secret. X.A.N.A. takes the opportunity to possess several barrels full of poison and turns the poison into a deadly, living gas. When Jeremie finds out, he calls his friends away from their respective vacations. X.A.N.A. uses the gas to attack Jeremie, Jim, and Sissi, and Jeremie just barely makes it out. Ulrich stays behind to find Jim and Sissi while the others go to deactivate the tower. In the end, Jeremie once again sprays graffiti, only this time, Ulrich helps and it shows Jim as a king, much to Jim's liking. ".
- code-lyoko-30 description "After taking another trip to The Carthage Region and returning to the school, Aelita talks to Jeremie about not being human, unaware that Sissi is recording their conversation. On top of that, the data they had retrieved from the Carthage Region takes over the supercomputer and starts running return trips over and over. Jeremie discovers that returning to the past makes X.A.N.A. much stronger and more powerful. During the third return trip, Xana possesses Sissi with his newly strengthened and increased abilities and powers and goes after Ulrich. Not only does the group have to deal with Sissi, but they also have to stop the return trips from continuing. ".
- code-lyoko-31 description "When Aelita's dreams and hallucinations become too disruptive to ignore, the group heads to the Hermitage to discover their source. There, Aelita finds a doll she inexplicably recognizes to be Mister Pück. Hidden on this doll is a key to a train station locker, which contains the heavily encrypted diary of Franz Hopper. Upon its discovery, Xana takes action, possessing Jeremie, to ensure they'll never be able to read it. When they deactivate the tower and Jeremie comes to his senses, Yumi explains to Jeremie why Xana can possess him and not Ulrich, Aelita, Odd, or Yumi. ".
- code-lyoko-32 description "It's Saint Valentine's Day and love is in the air. Ulrich forgets, so at last minute writes a poem for Yumi. However, when William presents Yumi with flowers, Ulrich gets jealous and reads the poem to Sissi instead, hoping to elicit jealousy from Yumi. The two end up in a fight, both bothered and wondering if the other really likes them. Also, a man possessed by Xana leaves a necklace at Aelita's door, Aelita is convinced that it was Jeremie who got it for her. Since Jeremie didn't actually get it, he's left to wonder who did, and ends up suspecting Odd, who avoids the question. This puts the two at odds, so to speak. Meanwhile, Aelita's necklace takes control of her and forces her to deliver herself to the Scyphozoa. Luckily, Odd arrives in time, and is able to save Aelita from the Scyphozoa by "threatening" to kill her. ".
- code-lyoko-33 description "When the school holds a concert in the gym, William accidentally drops a mixing board for the DJ contest. Odd offers to fix it, and tries to get Jeremie to help. Jeremie is busy, so Aelita offers her help. She easily fixes the device, and finds that she is quite talented in using it. The school is holding its finals, as well, and Odd finds that he is not prepared in the least. Meanwhile, Xana possesses Jim and takes Aelita to the factory in order to deliver her to the Scyphozoa. ".
- code-lyoko-34 description "During a mission to The Carthage Region, the Scyphozoa attacks Yumi, stealing her human DNA, having her trapped on Lyoko. To make matters worse, it's picture day for her class and she will be suspended if absent. After some discussion, Ulrich gets the idea to have Sissi stand in for Yumi. Strangely, Sissi agrees and asks for nothing in return. During this, Jeremie tries to come up with a way to bring Yumi back. Aelita thinks of a way, but won't tell Jeremie about it. She only tells him once she gets to Lyoko, so he can't object. She begins to transfer her own genetic code to Yumi, which will let Xana take her memory at will, being exposed. Luckily, Odd and Ulrich get there in time to stop her. Meanwhile, Jermie figures out that Yumi's DNA should be stored in XANA's memory, which is accessible through Sector Five.".
- code-lyoko-35 description "When Ulrich learns that Yumi might have to go back to Japan because her father lost his job, he can't accept losing her. After hearing the lottery numbers on the radio though, he gets an idea. Using a return trip, he is able to get a ticket with the winning numbers and give it to Mr. and Mrs. Ishiyama. When the others find out, they kick him out of the group until they can figure out what to do. To make matters worse, Xana activates a tower and possesses Nicolas. On top of that, he creates an army of Krabs to guard it. ".
- code-lyoko-36 description "After deciphering a part of Franz Hopper's diary, Jeremie gets an idea to make a monster that fights on the side of good. By combining techniques, he makes the Marabounta, a sphere that can replicate itself endlessly and devour any monster it can encase. Though it works quite well to begin with, everything goes wrong when it senses Aelita's virus, which is linked to Xana. After Odd attacks it to save her, the Marabounta goes haywire and threatens to devour all of Lyoko, so XANA sends his monsters to help destroy the Marabounta in order to protect Aelita and her memories. The monsters leave the Lyoko Warriors without causing any trouble. ".
- code-lyoko-37 description "When the supercomputer's uranium power source begins to fail, Xana is forced to possess a local criminal named Peter Duncan to replace it. The supercomputer's periodic shutdowns threaten not only Xana, but also Aelita, whose heart stops beating with each shutdown. ".
- code-lyoko-38 description "After a Xana attack, Jeremie insists on a return trip, regardless of the fact that Xana didn't even cause any damage. When questioned, he gets defensive and angry, insisting that it's necessary. Further questioning on the matter leads to the same result. After the next return trip, Jeremie is found unconscious in his room. Yumi and Ulrich go searching through Jeremie's room to see what they can find about Jeremie's problem. Upon decoding a video diary that is stored on his computer, they learn that he had been using the return trips to increase his own intelligence. When he's about to be taken to the hospital, Xana attacks, possessing the ambulance and driving it towards the river with Yumi with him. Now the others have to save Jeremie and deactivate the tower without Jeremie's help. ".
- code-lyoko-39 description "When Ulrich tries to tell Yumi how he really feels after some prodding by the rest of the group, he finds her talking to William, who is doing the same thing Ulrich had planned to. Yumi turns him down, but Ulrich leaves before hearing it. Meanwhile, Xana activates a tower and materializes a Krabe. At school, a driving class has been set up to teach the kids road safety. William turns out to be a good driver and Ulrich a rather poor one, which William makes fun of him for. The two then get into a fight and get detention because of it. Jeremie learns of the activated tower shortly after and the group heads to the factory without Ulrich. During this time, the Krabe makes its way to Yumi's house. When the group reaches the factory, they find a second Krabe guarding it. Yumi learns of the first Krabe from Hiroki and goes to help while Odd distracts another Krabe so they can get to the elevator. In the scanner room, they learn that the first two Krabbes destroyed the scanners that produced them, leaving just one usable. Aelita goes to Lyoko first. Before Odd can go, however, a third Krabe is materialized, preventing any further use of the scanners. Now Odd has to deal with this Krabe, Ulrich and William have to deal with the second, and Yumi and her family have to deal with the first. Not only that, but Aelita has to make her way to the tower without any support, and makes a decoy for the Scyphozoa. ".
- code-lyoko-4 description "When Sissi finds and steals Ulrich's diary, he is blackmailed into being her boyfriend. During a trip to a swimming pool, Jeremie and Yumi have the opportunity to find it. The new electric bus that is being used for the field trip is possessed by X.A.N.A. and starts acting weird as a result. Yumi ends up finding Sissi's diary during this and uses it to blackmail her into giving up the location of Ulrich's diary. X.A.N.A. then turns the bus on the city's petrol-chemical plant, threatening to blow up a sizable portion of the city. Yumi is sent to Lyoko to help Aelita, but she is devirtualized in the process. Odd manages to escape from the bus, leaving him to take Aelita safely to the tower to deactivate it in order to end the attack. ".
- code-lyoko-40 description "When Xana possesses Kiwi, it turns the little dog into the carrier for a virulent virus that turns those it infects into zombies. To make matters worse, Aelita and Jeremie are stuck in the cafeteria and can't get to the factory. On top of that, Odd is a zombie himself. Jermie and Aelita escape but Ulrich and the other students (except William, who is turned into one himself) fight the rest. ".
- code-lyoko-41 description "After Xana possesses the principal of the school and kidnaps Odd and Yumi, he gives Jeremie an ultimatum: deliver Aelita to the Scyphozoa or sacrifice Odd and Yumi. However, Jeremie and Aelita go to Sissi for help and Sissi agrees to be tempoarily part of the group to help save her father and eradicate Xana. ".
- code-lyoko-42 description "After a malfunction and a little bug with the regular materialization program, Odd and Yumi are bugged up, ending up in each others' bodies. Even worse, their atoms start splitting after a while due to being dematerialized, even on Lyoko. The gang has to go to Lyoko and fix the problem before Odd and Yumi disintegrate and disappear forever, but it's not easy when Xana tries to stop them. ".
- code-lyoko-43 description "Xana creates a ghost called a polymorphic specter, that can change its shape or form at will and doesn't need to possess a host, then uses it to drive a wedge between the group by having it kiss people while disguised as them. At the end of the episode Aelita kisses Jeremy to see how he'll react. He (predictably) freezes up. ".
- code-lyoko-44 description "After a trip to the Carthage Region, Jeremie believes he has the data necessary to cure Aelita's virus. While the two work on the cure, Odd, Ulrich, and Yumi go to a rock climbing contest. Odd races against Hervé, who is no match for Odd. William then goads Ulrich into racing, despite his obvious reluctance. During the race, Ulrich gets dizzy and falls. Yumi realizes that he must have vertigo. Ulrich, embarrassed, runs off. Meanwhile, Jeremie finds the anti-virus and gives it to Aelita. Despite some problem with the application, it seems to work. However, this does not last. An error in the anti-virus causes her to turn invisible. On top of that, she can't enter the towers on Lyoko, making it impossible for her to stop Xana's latest attack, which is a possessed pack of wolves targeting Odd, Ulrich, and Yumi. ".
- code-lyoko-45 description "Jeremy is woken up to an alarm signal, with no activated towers, so he goes back to sleep. The next morning, while Jeremy and Aelita are investigating Jeremy's computer, Odd looks for his DVD of his movie "I Guess Our Guest is a Ghost" to show the famous news reporter T.V. (Thomas Vincint), who is coming to the school to do a report on the lackluster of today's schools. Later, another tower is activated and Odd, Ulrich and Aelita are sent to Lyoko, only for the tower to deactivate itself. Then another tower activates and deactivates. Jeremy and Aelita stay at the factory while Odd, Ulrich, and Yumi go back to school. Finally, one more tower is activated and it starts to snow. Then it turns to a blizzard, trapping the three at the school. While they try to get to the factory, the find Sissi, Hervé, and T.V. in T.V.'s car, crashed into a tree. As the tree timbers, Yumi pushes Ulrich out of the way and gets trapped in the process. Ulrich stays with Yumi and Odd goes to the factory. The tower is deactivated before Yumi and Ulrich freeze to death. ".
- code-lyoko-46 description "Aelita's visions become a problem once again, but not the same visions as before. This time, she has visions of her and Franz Hopper being chased by government agents. The visions come even when she's awake, causing her to lose consciousness while at the pool. Wanting to know the source of the visions, she heads to the Hermitage to learn more about them. Jeremie discovers that Xana is causing the visions through her link to the supercomputer. During the mission to stop them, Aelita breaks away and heads to The Carthage Region, determined to discover the source of the visions. ".
- code-lyoko-47 description "During the school physicals, Xana possesses the school nurse, Yolande, and has her kidnap Aelita. The rest of the group beats her to the factory, but has no way to get Aelita from the far more powerful nurse. Having no other choice, Jeremie decides to test out an experiment which will give a person the same powers as one possessed by Xana. To do this, he has to activate a tower like Xana. Jeremie's towers turn green instead of red. Odd volunteers, and is enhanced by a ghost of Jeremie's design. This allows Odd to fight the nurse effectively while the others deactivate the tower. This fortune doesn't last, however. Xana is able to take over Jeremie's tower, reversing the effect of the ghost to drain Odd's energy. And on Lyoko, Xana makes everything invisible. Now the group has to deactivate not only the original tower, but the tower that's draining Odd's energy. ".
- code-lyoko-48 description "After reading about a dead man named Leon Corbe, who died during the construction of Kadic, Sissi decides to hold a séance to communicate with him. She manages to convince Ulrich to attend. During the séance, one of Xana's ghosts appears in the form of a four-armed monster. At first, it seem docile, but quickly gets angry and attacks. Ulrich leaves Sissi with Odd while he goes to tell Jeremie. Jeremie can't find an activated tower, which seems wrong considering the situation. As Jim patrols the hallways, he is picked up by an invisible object. Jeremie, Odd, and Ulrich arrive to spray it with a fire extinguisher, confirming that it's a ghost and implying that the super scan is broken. With the ghost on the loose, the group heads off to the factory. After they arrive, Aelita, Odd, and Yumi head to Lyoko. Odd looks for the tower while the other two head to The Carthage Region to fix the super scan. Meanwhile, Jeremie and Ulrich are left to deal with the ghost. ".
- code-lyoko-49 description "Jeremie discovers five activated towers and gathers the group to take care of them. However, when they arrive at the factory, they find a man at the interface, deactivating the towers as if it were a simple matter to do so. When questioned, the man claims that he's none other than Franz Hopper. However, something seems off about this convenient arrival. Franz says that the scanners cause cell degeneration, and blames it and the destruction of his diary on Jeremie. With everyone except Aelita angry at him, Jeremie calls his father and asks to be withdrawn from Kadic in favor of a school for gifted students – but after he hangs up, while pondering his dilemma, he realizes that there is something inherently wrong with Franz's explanation. ".
- code-lyoko-5 description "X.A.N.A. launches an attack on the Internet itself, managing to disable much of the city's infrastructure. Though most of the problems caused can be bypassed by manual controls, two trains that are completely automatic are put on a collision course, one of which contains a load of highly and deadly toxic chemicals. Yumi and Ulrich go to help Aelita, but Odd is forced to stay because Sissi tells on him to Jim for having Kiwi since he pulled a prank on her. On Lyoko, Ulrich and Yumi are devirtualized and Aelita deals with a Megatank alone with her Creativity. Odd finally escapes and goes to Aelita's rescue, and they stop the attack just before the trains collide. ".
- code-lyoko-50 description "During a short film made by Odd and starring Sissi, Sissi seems to be possessed by a ghost. She does not act as expected, however. Instead, she starts speaking in some strange language, focusing on Jeremie as she does. She is taken to the infirmary as a result. Later on, she walks into Jeremie's room and writes some code on a piece of paper. Jeremie translates the code, revealing a message stating a desire to help. Sissi is sent to the hospital after this, forcing Odd and Yumi to go there and collect her. On a trip to Lyoko, Aelita and Ulrich discover a white tower. Xana isn't happy about the tower, and sends Megatanks to shut it down forcibly. At the same time, it activates a tower and possesses a nurse at the hospital to do the same to Sissi. Odd and Yumi are able to prevent the nurse from doing so. They bring Sissi to the factory to finish the message she started earlier. She manages to type most of it out before Xana succeeds in shutting down the white tower. After Xana's tower is shut down, Jeremie translates the message, revealing that Franz Hopper had activated the white tower. ".
- code-lyoko-51 description "It's nearing the end of the year and Jeremie's research has hit a dead end. After the group collects some data from The Carthage Region, he plans to use a tower to decipher Franz Hopper's diary. Before the mission, Odd gets a message from a mystery girl. When he goes to meet her, he is attacked by one of Xana's ghosts and locked inside a well at the Hermitage. The ghost then assumes Odd's form and goes to Lyoko in his place. The tower that Xana activated to make the ghost then deactivates, confusing Jeremie. Putting it out of his mind, he begins his plan to decipher the diary. Shortly after they begin, the ghost turns on the group, devirtualizing Yumi and chasing Ulrich away from the tower as three Tarantulas arrive to protect it. At the same time, Xana attempts to take over Jeremie's tower, locking the decoding procedure so they can't abandon it. Jeremie realizes the true nature of the ghost during the fight, and Yumi goes off to find the real Odd. After the ghost proves to be ineffective against Ulrich, it shape-shifts into a clone of Ulrich. In this form, it proves to be an equal match for him. After much fighting, Ulrich finally beats the clone, but is taken out by a Tarantula shortly after. Just when it looks like Jeremie's tower will fall, Franz Hopper steps in and protects it. The diary then decodes fully. After examining the diary, Jeremie tells Aelita that she is Franz Hopper's daughter. ".
- code-lyoko-52 description "After going through all of Franz Hopper's diary, Jeremie discovers the truth behind the supercomputer, at least to some extent. Hopper had used it quite extensively, to the point of repeating a single day for more than seven years. His sanity degraded throughout the experience. Hopper also revealed that he and Aelita hold the keys to Lyoko, which Xana was after. He only needed her half, now. The keys would allow him to escape the supercomputer. Jeremie also finds a way to free Aelita from the supercomputer. It turns out that Aelita never had a virus. In fact, Xana had been holding onto a piece of her, which was responsible for linking her to the supercomputer. Aelita is not willing to go, angry over the fact that Hopper had essentially taken her life from her. She's also worried that Xana might escape. To that end, she shuts down the supercomputer. Jeremie rescues her, and the group goes to Lyoko to retrieve her fragment. After all their efforts, they seem to succeed, but it turns out to be a fake. Xana manages to devirtualize Aelita's defenders and steal her memory, effectively killing her and allowing him to escape, which shuts down Lyoko in the process. His escape allows Franz Hopper to revive Aelita and Lyoko, restoring all of Aelita's memories in the process. Through the restoration, Aelita finally remembers her past up to the point that she went to Lyoko. With Xana now free and Aelita's memories returned, neither are linked to the supercomputer. This means that they could shut it down, but it would do no good. Unsure of how they'll proceed, Jeremie promises that they'll find a way to stop Xana. ".
- code-lyoko-53 description "On her way to the forest as part of a science class field trip, Yumi becomes the target of the driver and the passengers on the school bus who all have been possessed by X.A.N.A. Meanwhile, Odd decides to compete against Jeremie and Herv in an election for student class representative.".
- code-lyoko-54 description "During a field trip with the rest of her 10th grade class, Yumi finds herself facing off against the students, teachers, and bus driver, all of whom Xana has possessed. At the same time, Xana plans to get rid of Lyoko through an alternate means: destroying each sector one at a time. To this end, he uses the Scyphozoa to possess Aelita and enter Code:XANA into the way tower, wiping out The Forest Sector, realized by Jeremie. ".
- code-lyoko-55 description "Xana attacks the Lyoko warriors by possessing a large amount of food. At the same time, he bugs up The Mountain Sector by rising the digital sea, but Odd and Aelita go to Sector 5 to stop him. Xana also mounts an attack on Lyoko's core at the same time. ".
- code-lyoko-56 description "When Xana hacks into a weapon's manufacturing computer network and leaves a paper trail pointing to Jeremie, government agents arrive at the school looking for him. Then, the whole gang arrive at the factory. When they end up tracking Jeremie to the factory, Xana possesses them for an attack on the supercomputer itself in The Ice Sector, and in The Mountain Sector. ".
- code-lyoko-57 description "Aelita gets mad at Jeremie and she and Odd go into Lyoko without telling anybody, which causes problems. On lyoko, Xana creates a diversion to get everybody to deactivate the tower in The Mountain Sector while the monsters (mostly Mantas and Creepers) worked on destroying the core of Lyoko. Jeremie and Aelita find a strand of DNA that belongs to Franz Hopper, indicating he may be still alive. ".
- code-lyoko-58 description "Odd and Ulrich are talking in the shower room when a young boy, Johnny, asks to talk to Ulrich. It turns out that Johnny likes Yumi, and being jealous of that, Ulrich tells him to follow her around to get her attention, which Yumi hates. After following her all day and ending up in the gym, a flock of crows possessed by Xana attacks Yumi. She is beaten unconscious by their electrified beaks and sent to the hospital. Meanwhile, as Jeremie and the others are fighting monsters to deactivate the tower, the Scyphozoa possesses Aelita and has her enter Code:XANA into the way tower, wiping out The Desert Sector for good and leaving Lyoko with two main Sectors - The Mountain Sector and The Ice Sector. Once Jeremie finds out, he activates a return to the past with strong hope for Yumi's life. This episode proves that Ulrich is not as comfortable as being just friends with Yumi as he says he is. ".
- code-lyoko-59 description "After being rejected by Yumi, William makes it his mission to find out the secret she's hiding. Soon enough, he manages to follow Ulrich and Odd to the factory and learns about Lyoko and Xana. Meanwhile in The Ice Sector, the Scyphozoa possesses Aelita to enter Code:Xana in the way tower, but is devirtualized just in time. The group thinks William's help is going to be quite useful, when a possessed demolition worker sets several bombs in the factory. They take a vote as to whether or not to include William as part of their group, but Yumi votes no and Jeremie initiates a return to the past. ".
- code-lyoko-6 description "Due to a favorable accident on Odd's part, Jeremie's materialization program for Aelita is finished, but is only good for one use. In turn, X.A.N.A. possesses two bulldozers and sets them on the factory to prevent Aelita's materialization from taking place. Odd goes to Lyoko while Ulrich tries to stop the bulldozers. Ulrich is then knocked unconscious and Yumi carries him to safety. Odd is devirtualized and Yumi goes to Lyoko to help Aelita. When trying to stop an attack, Yumi pushes a Megatank to save Aelita, but she falls into the digital sea by mistake. To save her, Aelita gives up her materialization program, which allows Jeremie to bring back Yumi. ".
- code-lyoko-60 description "Before leaving Sector 5, Odd and Ulrich are hit by a weird red beam from a pair of Mantas. They both eventually begin to act strange in the real world during a school play. They start seeing their environment, people as enemies, and fight as if they were still on Lyoko. They are branded as insane and hospitalized while Jeremie tries to figure out what happened. After finding the cause and devising a cure, Jeremie has Yumi and Aelita break them out of the hospital. Meanwhile, Xana uses their handicap to mount an attack on Lyoko's core. Yumi heads to protect the core, as Aelita tries to help the boys who instead now see the real world while on Lyoko. ".
- code-lyoko-61 description "When Xana sabotages the supercomputer, weird bugs begin cropping up in Lyoko. With its power rapidly draining, Jeremie needs to repair it before it becomes completely useless. However, he seems to forget about boys' dorm inspection, so Jim forces him to stay behind. Meanwhile, Xana possesses vines to trip up the rest of the group, except Aelita. Since the attack keeps draining power from the supercomputer, Aelita purposefully wipes out The Ice Sector leaving The Mountain Sector left. ".
- code-lyoko-62 description "During a test to materialize Ulrich directly into Sector 5, his mind and body become separated, leaving Ulrich's body trapped on Lyoko and his spirit stuck on Earth. What's worse, Xana possesses Ulrich's body and uses it to attack the core. Meanwhile, Susan, disappointed with Ulrich's bad grades, tries to place him in remedial classes. ".
- code-lyoko-63 description "When Odd complains that he doesn't have any cool powers on Lyoko like his friends, Jeremie designs him a teleportation power. It works, but ends up leaving duplicates of himself in the location he teleported from in The Mountain Sector. After trying it twice, Jeremie devirtualizes Odd to find out what went wrong, accidentally creating three clones. Meanwhile, in the real world, Xana attacks using a mysterious smoke that turns anyone it hits to stone. One of Odd's copies gets turned to stone, so the other two Odds must retrieve him before they become unstable and disappear. ".
- code-lyoko-64 description "With Xana's attacks becoming more and more difficult to handle, the group contemplates adding another member to the team to make things easier. William is still the prime candidate, but Yumi still doesn't trust him. While Jeremie works on a way to get to Sector 5 directly, Xana makes a clone of him and has it take Jeremie's place. Meanwhile, Yumi has missed one too many classes, and will be expelled if she misses another. Odd and Yumi end up bugged by Jeremie's clone, preventing them from rescuing Aelita from the Scyphozoa. The Scyphozoa possesses Aelita, having her enter Code:Xana into the way tower, wiping out The Mountain Sector, cutting off access to Sector 5. However, Jeremie completes his program to send the group to Sector 5 directly. ".
- code-lyoko-65 description "After William is initiated into the group, a series of events leaves only him and Aelita to defend Lyoko's core. During William's first mission to Lyoko, Xana uses the Scyphozoa to possess him, making him the general of a massive army focused on Lyoko's core. Despite their best efforts, the group can't stop the possessed William from destroying the core, which both renders the supercomputer useless and transforms William into a darker, Xana-themed version of himself. Later, in the Hermitage, while the group broods over their predicament, Jeremie receives a coded message directly from the internet, sent by none other than Franz Hopper who somehow survived the destruction of Lyoko. ".
- code-lyoko-66 description "Using the data that Franz Hopper gave them, Jeremie and Aelita succeed in recreating Lyoko, which now holds only Sector Five. Soon after, William is devirtualized, and seems perfectly normal. Sissi decides to make herself "editor-in-chief" of Kadic News, much to Milly and Tamiya's dismay. She soon barges into Aelita's room to interview her and is stopped by William. As soon as William makes Sissi, timay and milly leave,William kidnaps Aelita and takes her to Lyoko. William leads Aelita out of Sector Five and to what used to be The Desert Sector. His intent is revealed to throw Aelita into the Digital Sea. Odd manages to stop him, but William dives into the digital sea. Jeremie concludes that this is Xana's new strategy, and that they must be careful. ".
- code-lyoko-67 description "In order to compensate for all of William, while under XANA's control, Jeremie sets to work designing new equipment for his friends and recreating Lyoko. In order to buy himself time to do this, he activates a tower and uses it to create a a clone of his own to attend class in his place. Meanwhile, William's absence is drawing attention, from both the principal and his father. While Jeremie's Clone is impressing Jim outside, William appears on Lyoko and tries to put the tower under XANA's control. In order to maintain his clone, Jeremie draws energy from Sector Five to maintain the activated tower. He eventually runs out of energy and the tower is put under XANA's control. While Odd holds the Jeremie Clone off, Aelita, Yumi, and Ulrich go to Lyoko with new outfits and powers. They eventually deactivate the tower and stop William, who tries to push Yumi into the digital sea. She is saved by Odd at the last second. Jeremie then does a return to the past and replaces the Jeremie Clone with a William Clone to prevent any suspicion about his absence. ".
- code-lyoko-68 description "Jim's nephew Chris, the drummer of the Subdigitals, pays a visit to Kadic to look for an opening act for the band's next concert. Everybody tries out, and Aelita turns out to be the one Chris is looking for. However, circumstances make sure that Chris doesn't realize who Aelita is, and XANA's clone of him only complicates matters, kidnapping Aelita and sending her to Lyoko. Jim and Chris manage to involve themselves in their search for Aelita, and end up battling the clone while the rest of the group tries to deactivate the tower. After the threat is over, Jeremie executes a return trip so that Jim and Chris remember nothing. He also delivers Aelita's demo CD to Chris personally after doing so. ".
- code-lyoko-69 description "There is a new recreation room at Kadic and William's clone is put in charge of it. Meanwhile, Jeremie has developed a program to get the real William out of Lyoko. However, the program malfunctions and bugs up the tower, allowing XANA to take it over while Aelita cannot shut it down. As the William clone lashes out at the group, the real William is on Lyoko to keep the tower under XANA's control. Jeremie manages to repair the tower in time for Aelita to reset it, restoring the clone to working order. With a return trip to erase the unwanted memories of William's behavior at school, the group elects Sissi as the rec room monitor. ".
- code-lyoko-7 description "After an unexplained incident on Lyoko ends up devirtualizing Yumi without any cause, she is taken to the infirmary. After waking up, she attacks Yolanda and continues to act weird throughout the day, wanting to go to Lyoko with everyone else. Jeremie won't let them, though, because he wants to know just what caused her devirtualization. Meanwhile, on Lyoko, Aelita finds several Roachters guarding an orange sphere, which she calls a Guardian, and informs Jeremie. Back at the school, Jean-Pierre confronts Yumi about her attack on Yolanda. When he threatens to call her parents, she attacks him as well. In another attempt to get the group to Lyoko, Yumi tries to seduce Jeremie to convince him to arrange a mission. She fails, but Odd and Ulrich stumble upon the scene. Jeremie tries to explain, leaving Yumi alone. Jeremie apologizes for the incident, citing Yumi's strange behavior. When they head back to his room, they find his computer destroyed. Yumi seems the likely culprit. She shows up to meet them, still wanting to go to Lyoko. Having no choice, they go, but Yumi stops the scanner before it can close, leaving her alone in the scanner room. As she goes to work destroying the scanners, the others find the real Yumi trapped inside the Guardian. After being devirtualized by Ulrich, she and the cloned-Yumi engage in battle. Eventually, the clone tries to kill Jeremie, but Aelita manages to deactivate the tower before Jeremie falls to his death. ".