Code Lyoko

There are new things in store for the gang on Lyoko: Jeremy has programmed some high-performance vehicles...

While investigating the Hermitage, the house where Aelita has had visions, Jeremy discovers that it once belonged to a Mr. Franz Hopper, a former teacher at Kadic Academy.

Now that our heroes have discovered Sector 5, they decide to go and explore it in the hope of unearthing some of its secrets. First, they will have deal with a series of traps... But then they realize that this sector is in fact a part of XANA itself.

XANA has gained control of the Super-computer's return to the past program. At first, our heroes struggle to understand why it would do such a thing... but before long, they realize that Sissi has been possessed by XANA. She is trying to wipe them out!

Ever since the day Aelita set foot in the Hermitage, she has been plagued by increasingly frightening visions. For a few days now, she hasn't been able to sleep a wink. Jeremy suggests going back to the house to put a stop to her nightmares once and for all. Once at the house, Aelita's visions lead her to a strange, familiar-looking plush toy.

It's St. Valentine's Day! Yumi and Ulrich get into a fight about William. Aelita receives a pretty necklace which she is convinced is from Jeremy. Unfortunately, it's really a poisoned gift from XANA.

Aelita steps in for one the DJs at the Academy's school dance. Who would've guessed whe would have such an ear for electronic music! Jeremy is jealous of all the time she is spending on her new-found passion. Meanwhile, XANA lies in wait.

In an attempt to save Aelita from the Scyphozoa, Yumi finds herself engaged in a brutal combat against the monster. Shortly afterwards, Jeremy sees that, as a result of the combat, Yumi can no longer be devirtualized. In fact, it looks like a vital part of her is missing -- her virtual DNA code!

Yumi and her family are going to move away. Her father, Mr. Ishiyama, has been laid-off work and they cannot afford to stay in their current home while he tries to find another job. Devastated by the idea of Yumi leaving, Ulrich gets an idea -- he plans to secretly use the return to the past program to buy a winning lottery ticket which he will give to Yumi's parents.

When Jeremy deciphers part of Franz Hopper's journal, he comes across an interesting theory about multi-agent systems. It states that while a lone, small program working alone is incapable of the slightest imaginative response, a group of small programs working together is said to be capable of performing highly-complex tasks.

The nuclear battery which powers the Super-computer is running out of fuel... Sensing the danger to itself, XANA possesses a criminal to steal some uranium. When our heroes find out what's going on, they are forced to help XANA to carry out its evil plan as Aelita's survival is also under threat!

For some time now, Jeremy has been acting increasingly weird. He insists that they keep returning to the past despite what his friends say. They are all too aware of the dangers inherent to returning to the past, namely, an increase in XANA's powers.

Today at Kadic Academy, 8th and 9th graders have Driver's Ed. Ulrich and William both want to impress Yumi, and are at each other's throats. Meanwhile, XANA has launched a new attack. In an attempt to wipe out its enemies (with the exception of Aelita whose memory he needs), Xana has found a way to materialize Krabes in the real world.

XANA uses Kiwi to spread a virus which turns people into zombies. The zombies are all obsessed with doing our heroes in. The Academy becomes the scene for a real-life horror movie in which the character's true personalities are revealed.

XANA has possessed the Headmaster. Mr. Delmas kidnaps Yumi and Odd and gives Jeremy an ultimatum -- Aelita must go to the edge of the Ice Sector on Lyoko within two hours, or Odd and Yumi go bye-bye! Our heroes don't have a moment to lose!

At the end of another successful mission on Lyoko, our heroes rematerialize in the scanners. But something's not quite right -- the program has malfunctioned a put Yumi in Odd's body and vice versa. They are forced to make do as best they can in unfamiliar bodies, while the rest of the gang looks on in amusement.

Love fever has taken over the Academy! First, Aelita catches Jeremy kissing Heidi! Then, Yumi sees Ulrich kiss Sissi! Jeremy finds out that Aelita is going out with Nicolas! The gang is in serious danger of falling apart at the seams, starting with Jeremy who has a huge falling out with Aelita. Once again, XANA is behind it all.

Ulrich is afraid of heights... but he's never dared admit it to his friends. Until one day in gym class, he has to race William up the climbing wall and is humiliated by him in front of Yumi. Crestfallen, he goes off to brood in the woods.

Using a national television relay station to its advantage, Xana's sends his specters flowing out of antennae and transmitters all over the city. The specters blend into the low-hanging clouds covering the area. A snow storm breaks out, sending the temperature spiralling down to an outrageously cold 60 degrees below !

Once again, Aelita is plagued by strange visions which seem related to a past she does not recognize. It is in fact one of XANA's schemes! It stimulates our young heroine's memory in order to draw her to Sector 5 where the Scyphoaoa is waiting for her! After a long struggle, our heroes manage to counter XANA's attack.

It's time for the annual physical at Kadic Academy! XANA possesses the school nurse, Yollanda, and she captures Aelita. Her goal is to get Aelita to Lyoko and hand her over to the Scyphozoa. For Jeremy, there is only one possible solution -- they must prevent the school nurse from reaching the scanner room!

When Sissi hears strange noises coming from the boiler room, she is convinced that Kadic Academy is haunted. When our favourite snob organises a pathetic seance in the basement, XANA sends out a specter. Panic spreads throughout the school! The pupils are all convinced that Kadic's infamous ghost is making a come-back!

A strange man turns up at the computer lab claiming to be... Franz Hopper. Our heroes can't believe their eyes. But in truth, the man is just another of XANA's spectres which has taken on a human appearance. He cleverly, yet relentlessly sows dissension in the gang so he can wipe out our heroes and lure Aelita to Lyoko so that the Scyphozoa can steal her memory.

Our heroes are doing battle with Sissi who is acting very strangely. Could XANA be controlling her? This hypothesis is quickly discarded as Sissi does not seem interested in harming our heroes... rather, she appears to be trying to tell them something. The truth comes to light when an activated tower is discovered on Lyoko.

To make decrypting Franz Hopper's journal easier, Jeremy decides to activate a tower once more. But while Aelita is transferring data, XANA tries to take back control of the tower and could possibly gain access to the restricted-access part of the Super-computer where Jeremy has stored all of the data he has collected since the very beginning.