Valerie, a girl from school, shows interest in Freddie, and they become boyfriend and girlfriend. She tries to tear Freddie away from iCarly to film her webcast and tries to recruit Sam, too.
Alex finds her parents old magic carpet and convinces her dad to give her flying lessons.
Raven suspects that Cory has started smoking when she finds a pack of cigarettes in his shirt pocket, but he is really hiding them from his girlfriend, Cindy, so that she does not smoke them. Meanwhile, Raven makes a casserole for a party, but Eddie and Chelsea keep on eating it, and covering it up by making more casseroles, but they keep on eating those as well.
Robby goes on a date with Lilly's mom, but when things don't go as planned, Miley & Lilly fight over who's at fault. Jackson and Rico pretend to be each other.
Rush week places the residents of Omega House in a variety of erotic positions.
Gotham citizens are bursting into hysterical laughter and dumping stolen goods into the river, and Batman is soon on the trail of the Joker.
With their mission completed, the group looks back on all their fond memories of Lyoko. Sissi, meanwhile, plants a tracking device on Ulrich in order to discover their secret. When it comes time to shut down the supercomputer, all but Yumi are unwilling to go through with it: Aelita is still holding onto the hope that her father can somehow be saved, Jeremie doesn't want to take away the thing which made them friends, and Odd and Ulrich both liked being heroes. While they muse over their attachments to Lyoko, Sissi finds her way into the computer lab, and Jeremie's open diary reveals the whole of their adventures. When Sissi tries to explain this to her father, he believes she has lost it and sends her to the infirmary. A return to the past deals with that problem. Ulrich stops Sissi from planting the tracker on the repeat attempt, and the quintet invites her as a friend. Once more at the supercomputer, the group unanimously decides to shut it down, closing the book on their adventures, for now.
With the Skid gone and XANA's Replikas at unmanageable numbers, Jeremie continues work on his multi-agent system. Meanwhile, Aelita has nightmares about her father being killed by XANA. As Jeremie works, he is contacted by Franz Hopper, who arranges a meeting on Lyoko. William wants to help, but all except Aelita are a little wary of trusting him again. William is left in the lab with Jeremie. After meeting up, Franz transmits the data necessary to finish Jeremie's multi-agent system. However, XANA is not willing to give up without a fight, activating a tower to possess William once again while sending the Kolossus to deal with Franz. Yumi willingly devirtualizes herself and fights William while the others protect Franz. Once Franz is finished transmitting the data, Aelita and Odd head to Sector Five to finish the program. Ulrich, meanwhile, manages to defeat the Kolossus, but its corpse falls on Ulrich, devirtualizing him instantly. However, a problem arises: the energy requirements are too great. Aelita's nightmare is realized when Franz makes the ultimate sacrifice himself to power the program, and in doing so XANA is wiped out completely. Though a great victory for them, the loss of Franz Hopper leaves them with little reason to celebrate.
Tom's match against Crellan continues. He manages to defeat Cromax several times, only for him to keep coming back. After Tom finds the reason for this problem in the form of Ariak, the battle comes down to Maxxor vs Cromax. At that point, Klay and Krystella's little trick becomes Tom's trump card.
After seven victories in the Crellan Drome, Tom is challenged to another match by CodeMaster Crellan. In preparation for his match, he scans Mugic that he is tricked by Klay and Krystella into believing it will double his power, but it really switches their stats. Can Tom overcome this bump in the road and defeat CodeMaster Crellan?
Mick experiences déjà vu when a fire investigation that destroys a historic Hollywood hotel seemingly replicates the night Coraline died. Mick's sense of nostalgia grows when a woman he is working with bares a striking resemblance to his ex-wife.
Alex wants unlimited use of magic from her parents, after she meets a fellow wizard at her school who is allowed unlimited magic from his parents. There is a meeting which Alex sets up between the two sets of parents.
Key evidence comes in implicating Landry; when Tami's sister visits to help her with the baby, she stirs things up in the house; Riggins must prove to coach Taylor that he wants to be a part of the team.
When a man is found dead, the team enters the world of alternate reality gaming. However, their investigation leads to a danger for a loved one.
Delinda wants Danny and the casino staff to be more environmentally friendly.
Everyone is shocked when Cleo is fired at the Ice Cream Stand, and even more so when Lewis takes her place! Rikki and Emma strike back at him but end up going too far
Melinda and Jim discuss a kidnapping where the family has contacted a psychic who Melinda believes is telling the family stuff that they want to hear just so he can make money off of them. Melinda goes and talks to the family and finds that something else has happened to the missing girl.
Henry takes steps to protect Vicki and Mike from the vampire who's encroaching upon his territory: his sire and ex-lover, Christina.