A mysterious force, XANA, sets in motion a chilling plan, unleashing malicious viruses that wreak havoc on human minds, causing memories and identities to vanish.
Aired: Sep 3, 2003As Milly grapples with the crushing blow of Sissi's rejection, her beloved te...
Aired: Sep 10, 2003The band is coming together as Odd holds auditions to find a drummer, with Ni...
Aired: Sep 17, 2003The gang's vacation is disrupted when Jeremie and Sissi choose to stay behind...
Aired: Oct 1, 2003As Sissi uses the secrets from Ulrich's diary to her advantage, she cleverly ...
Aired: Oct 1, 2003A sinister force, X.A.N.A., infiltrates the city's communication system, putt...
Aired: Oct 8, 2003Jeremie's new project, the materialization program, has a critical limitation...
Aired: Oct 15, 2003Yumi finds herself trapped in Lyoko, where her dark duplicate concocts a plan...
Aired: Oct 22, 2003A famous film director's arrival creates a new challenge for the heroes, who ...
Aired: Oct 29, 2003A cryptic phone alert sparks chaos among the students, leading Sissy to start...
Aired: Nov 5, 2003A mysterious new student named Taelia arrives at Kadic, bearing an uncanny re...
Aired: Nov 12, 2003As Jeremy navigates his current school, he must weigh the importance of his r...
Aired: Nov 19, 2003Ulrich is torn between his surprise over a romantic letter from Yumi and the ...
Aired: Nov 26, 2003A desperate situation arises as Jeremy's efforts to fix Aelita's program only...
Aired: Dec 3, 2003XANA seizes control of the factory, ensnaring Yumi, Ulrich, and Sissi in an e...
Aired: Dec 10, 2003A strange gas invades the school, unleashing uncontrollable laughter and resp...
Aired: Dec 17, 2003X.A.N.A. wreaks havoc by electrifying a trap that ensnares Odd, Ulrich, and s...
Aired: Dec 24, 2003A mysterious force, XANA, sets in motion a chilling plan, unleashing maliciou...
Aired: Dec 31, 2003A mysterious song spreads rapidly through the school, putting countless lives...
Aired: Jan 7, 2004Trapped between two worlds, Jeremy must join forces with Aelita to rescue him...
Aired: Jan 14, 2004A robot competition between Herb and Jeremy takes a dark turn as Herb resorts...
Aired: Jan 21, 2004The Kadic soccer final descends into chaos as a zero-gravity zone created by ...
Aired: Jan 28, 2004A shift in Ulrich's life causes tension with Yumi, while X.A.N.A. resorts to ...
Aired: Feb 4, 2004A surprise dance party is planned at Yumi's house, but Odd's efforts to cover...
Aired: Feb 11, 2004In the next episode, Ulrich, Odd, and Yumi find themselves trapped in a virtu...
Aired: Feb 18, 2004Next episode, Jeremie's project to materialize Aelita nears completion, as Yu...
Aired: Feb 25, 2004The group's plan to defeat X.A.N.A. is delayed as they discover a surprising ...
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