September 3, 2003 • 23m
A student named Milly seeks the comfort of her teddy bear after being embarrassed and ostracized due to her young age by Sissi, th...Read more
September 10, 2003 • 23m
Odd decides to start a music band with his friends. But Jeremy can't play, so they try to hire a drummer. In the end, the best dr...Read more
September 17, 2003 • 23m
Ulrich and Jeremy are doing graffiti on a wall on campus while Kiwi wakes up Jim. When Jim passes Ulrich and Jeremy, Ulrich gets a...Read more
October 1, 2003 • 23m
Sissi has found something very special and dear to Ulrich, his diary! Unfortunately the diary contains some information on X.A.N....Read more
October 1, 2003 • 23m
The day starts off when two girls are talking about Ulrich and then Sissi goes and interrupts and tells the girls that Ulrich is h...Read more
October 8, 2003 • 23m
Jeremie is working on the materialization program, and finally gets it. Jeremie wants to matierialize Aelita, but realizes that p...Read more
October 15, 2003 • 23m
This episode starts out as Yumi and Aelita are running inside Lyoko looking for the activated tower. Then Yumi suddenly disappears...Read more
October 22, 2003 • 23m
When a director comes to town to film a movie, XANA posseses a plastic alien model in order to destroy Ulrich and the others.
October 29, 2003 • 23m
When all the student's cell phone goes off in class, it starts Sissy on a petition to save her cell phone--but it's goes awry when...Read more
November 5, 2003 • 23m
Jeremie mysteriously loses contact with Aelita. The same day, a new student named Taelia (who looks alot like Aelita) arrives at s...Read more
November 12, 2003 • 23m
Jeremie learns that he has to take a test. If he passes, he'll get transfered to a new school and nobody will be able to stop XANA...Read more
November 19, 2003 • 23m
Ulrich is fussing over a mysterious letter found slipped under his door one night... a love letter signed by Yumi! Meanwhile, XAN...Read more
November 26, 2003 • 23m
The episode starts with Jeremie still trying to materalize Aelita. He calls the team to the factory to show them his latest devel...Read more
December 3, 2003 • 23m
It's the anniversary of the day Jeremie and the others met Aelita. They begin planning a surprise for her, unaware that Sissi is ...Read more
December 10, 2003 • 23m
After seeing laughing gas in Science class, Team Lyoko has to see it again - working for Xana. While working for Sissy in a schoo...Read more
December 17, 2003 • 23m
After a quick game of soccer, Yumi heads home for the night, but Odd and Ulrich head in for dinner, and Jeremie is already there. ...Read more
December 24, 2003 • 23m
When learning about NanoDoctors, small robots being designed to cure dieases, Ulrich holds some gel that the NanoDoctors would liv...Read more
December 31, 2003 • 23m
A new rock song Odd downloads sends him into a coma, and the same song is passed through the school. XANA's new beat is the cause...Read more
January 7, 2004 • 23m
Jeremie is now taking his ""Materalize Aelita!"" campaign to levels unknown - quite literally. He virtualizes himself, but there ...Read more
January 14, 2004 • 23m
Both Herb & Jeremy are in a robot competition Herb with ""Iron Sissy"", and Jeremy with ""Kiwi 2."" Herb cheats by launching a ge...Read more
January 21, 2004 • 23m
Xana decided to get rid of everyone by using the power of Gravity, and Yumi, Odd, and Jeremy went to the factory, but Ulrich had a...Read more
January 28, 2004 • 23m
Ulrich is getting tired of getting being rebooted so many times and waiting to find out if Yumi has feelings for him or not. He t...Read more
February 4, 2004 • 23m
Well, it starts off as Yumi wanting to have a party at her house. Of course, Odd jumps into action, and says that he has the Deeja...Read more
February 11, 2004 • 23m
One day at school, Jeremy notices that Odd, Ulrich, and Yumi are missing. Meanwhile, Odd, Ulrich, and Yumi ARE at school with Jere...Read more
February 18, 2004 • 23m
As Jeremy is perfecting his materialization program for Aelita, Yumi, Ulrich and Odd are making preparations for her arrival. But ...Read more
February 25, 2004 • 23m
Aelita is materialized, but unfortunately, Xana implanted a virus inside of Aelita, so if Xana dies, so does Aelita. Then Xana dec...Read more