Code Lyoko

Jeremy and Aelita, using data sent to them through the network from Franz Hopper, manage to reconstruct part of Lyoko: Sector 5. It would seem that things have taken a turn for the better: the real William reappears at Kadic, apparently unscathed.

Jeremy creates a polymorphic specter of himself to go to phys ed class in order to be left to work undistracted on bringing William back from Lyoko. Jeremy's body double turns out to be far more athletic than the original, to Jim's considerable surprise.

All of Kadic Academy is buzzing: the drummer for the famous rock group, "The Subdigitals"-who just so happens to be the nephew of one of the faculty-is visiting the school. In fact, he is there to hold auditions as part of a promotional operation to discover young musical talent-the winner going on to play the opening set for the Subdigitals's upcoming concert.

A recreation lounge room is unveiled for the students at the academy. William's body double, created by Jeremy to replace the Lyoko prisoner, is elected student manager. Unfortunately, this version of William has a major flaw: he is absolutely daft.

Jeremy and Aelita are inches from creating a virtual ship capable of taking the Lyoko Warriors deep into the World Wide Web. But their success hinges on closely following all aspects of the program's progress, which will terminate the following afternoon. Alas, bad luck strikes as the two students are found working together late into the night in the same room-against academy rules.

Pressured by the eager and impatient Lyoko Warriors, Jeremy agrees to launch the virtual ship Skidbladnir on its maiden voyage. Aelita, Ulrich, Yumi and Odd prepare to embark on their first journey as internauts exploring the World Wide Web. But just as our heroes discover the liquid environment of the Digital Sea, a glitch surfaces in the programming and the "Skid" loses its guidance system.

For some time now, Xana has been targeting either Jeremy or Aelita in his attacks. This worries Jeremy: if ever the two of them become incapacitated, Ulrich, Yumi and Odd would never be able to use the Supercomputer on their own. While Aelita goes to the final round of auditions held by the Subdigitals, Jeremy tutors his-reluctant-friends how to run the computer.

The Lyoko Warriors return to the Digital Sea on another mission, this time to explore a new virtual world that Xana seems to have created based on Lyoko. This could go more smoothly if Odd and Aelita weren't constantly arguing with each other.

Jeremy is convinced that the band of Lyoko Warriors needs to get into shape to better fight against Xana. Who better than Jim, a former Special Forces drill sergeant, to whip them into shape? Our heroes-including Jeremy-find themselves enlisted in a "commando camp," that soon shows our young recruits where their limits lie!

Using a military satellite, Xana manages to alter the path of a comet, which now threatens to crash into the academy and the factory! As Yumi, with help from Hiroki and Johnny, tries to wrest control of the military satellite from Xana by hacking into a satellite dish, Jeremy must bring in the other Lyoko Warriors, who were sent deep into the Internet on another mission...

To teach her biology class about ecosystems, Ms. Hertz brings the entire ninth grade on a camping field trip to an isolated island in the middle of a lake. Only Yumi stays behind at the academy to make up some midterm exams. But Xana craftily takes advantage of the isolation of our heroes to attack the Skid, planning to destroy the vessel.

Trying to impress Milly by bringing her a scoop for her paper, Hiroki swipes his sister's personal diary, hoping to pass Milly some secrets. Only that he loses the diary (not realizing that the purloined journal has wound up in Ulrich's possession), bringing the full wrath of Yumi upon him.

The Lyoko Warriors are planning a seek-and-destroy mission against the Supercomputer that created the first Replika, discovered on a previous mission in the network. To complete their mission, Jeremy has finished a process he calls "Energizing," a sort of teleportation which allows his friends to be rematerialized anywhere on Earth in the form of a Super Polymorphic Specter.

A return trip to the Amazon laboratory for our heroes, determined to finally destroy once and for all the Supercomputer housed inside. But first, the Lyoko Warriors will have to get past an army of arach-androids created by Xana. As for Odd, he has a modest bet going with his friends.

During a routine mission, Odd takes the initiative of sneaking Kiwi onto Lyoko with him, against Jeremy's wishes. Unfortunately, things do not go at all the way he had imagined... While the Lyoko Warriors struggle to deal with the resulting problems, Xana attacks by possessing a motorcycle gang who take over the factory.

Jeremy is becoming embarrassed and troubled by the increasingly human behavior of William's clone, and says so to his friends. Unfortunately, the conversation is overheard by Milly and Tamiya who, believing that they have landed a scoop, set out to interview William's double. The clone leads the two budding reporters to the factory.

All of the Lyoko Warriors are headed back to their respective families for the winter holidays... except for Aelita, whose past remains a painful subject, and who chooses instead to stay alone at the academy to better keep an eye on Xana.

Our heroes make another trip to the desert base and stumble onto a disturbing discovery. Their mission is made even more difficult as Odd, who broke a mirror just before leaving, seems to have brought nothing but bad luck onto himself and the others.

Thanks to Odd, Jeremy wins a ride in the back of a jet fighter, but the prize seems not to please the youth whatsoever. What can he do in a fighter plane if Xana attacks? Afraid of appearing chicken, he still shows up at the Naval Air Station to claim his prize.

Sissi hosts a beautiful and glamorous pen-pal from Iceland, a real knockout who drives all of the boys at the academy crazy... Every one of them! But the young girl seems to have eyes only for Odd, stoking tension amongst the gang. Stung, Odd commits an unforgivable betrayal.

The rest of the gang of Lyoko Warriors has had it up to their ears with Odd's dog, Kiwi. The pup is apparently only good for destroying or fouling other people's belongings. Despite Odd's protests, they reach a common decision to banish the dog for several days in the factory... Meanwhile, as Yumi and Ulrich are at their Penchak Silat class, Xana takes possession of the "other" Kiwi

During a surprise dorm inspection, Odd begs Yumi to hide Kiwi at her parents' house. The young lady reluctantly agrees... but in turn passes responsibility for the dog over to her brother Hiroki when she is called by Jeremy to go off on another mission. Indeed, Jeremy has found another Replika. Once the Skid is set up in the Replika, Yumi and Odd are energized to a location... out of this world.

Patrick Belpois, Jeremy's cousin is a surprise new student enrolled at Kadic Academy. Unlike the rest of the Lyoko Warriors, who find the newcomer interesting and charming, Jeremy has always detested his cousin, and makes this much clearly understood. Sissi takes advantage of the Belpois family feud to try and uncover the secret of our heroes.

Tonight's the night: Aelita is DJ-ing the opening set for the Subdigitals concert! While she struggles with her stage fright, Odd feverishly tries to find an extra ticket that he'd promised to yet another girl that he has set out to impress. The time comes... But Xana crashes the concert and kidnaps the new DJ.

Aelita finds a photo of herself with Franz Hopper at the Hermitage. Jeremy tries to extract information from the picture, as mathematical formulas are visible on a chalkboard in the background. But the image winds up in the hands of Sissi, who passes the photo on to her father.