Code Lyoko: Season 2

Season 2 overview

The group improves its equipment while Aelita adjusts to life on Earth. Investigation of the Hermitage and Lyoko reveals a hidden fifth sector and creates new dangers.

Key story beats

  1. New Defensive System — Jeremie develops new vehicles and a scanning program that can instantly detect activated towers, allowing Aelita to remain on Earth while the group continues fighting the hostile intelligence.
  2. The Hidden Fifth Sector — The group investigates the owner of the Hermitage and discovers a previously unknown fifth sector after Aelita becomes lost in Lyoko.
  3. Rescue Beyond the Boundary — Ulrich and Odd are devirtualized without immediately returning to the real world, forcing Yumi to leave home secretly and help rescue Aelita while Jeremie searches for a recovery method.
  4. The Endless Return — False data from Sector 5 enables repeated returns to the past. Jeremie realizes that each repetition strengthens the hostile intelligence, which then possesses Sissi during one of the cycles.
  5. The Locked Diary — Aelita recognizes a doll connected to her dreams, and a key hidden inside it leads to an encrypted diary belonging to the former teacher associated with the Supercomputer.
  6. Jealousy and Deception — Ulrich reads a poem to Sissi after William gives Yumi flowers, while Yumi kisses William on the cheek. Ulrich and Yumi argue because both are uncertain about the other's feelings.
  7. Attack During the Concert — Aelita demonstrates unexpected technical talent by repairing a mixing board, but the celebration is interrupted when a possessed staff member takes her toward the factory.
  8. The Lost Human Form — A monster steals Yumi's human DNA and traps her on Lyoko. Sissi agrees to stand in for Yumi at school while Jeremie searches for a way to restore her.
  9. The Cost of Changing Time — Ulrich uses a return to the past to obtain a winning lottery ticket for Yumi's family. The others remove him from the group while they decide how to respond to his unauthorized use of time.
  10. The Uncontrolled Ally — Jeremie creates a replicating monster intended to fight hostile creatures. It detects Aelita's connection to the hostile intelligence, turns against her, and threatens to consume Lyoko until the group and their enemy act against it.
  11. The Failing Battery — The Supercomputer's main battery begins failing, causing periodic shutdowns that endanger both the hostile intelligence and Aelita. Jeremie is captured while the battery is being replaced.
  12. The Manipulated Programmer — After Jeremie insists on another return to the past and is later found unconscious, Yumi and Ulrich investigate his room and decode a video diary revealing that his behavior has been manipulated.
  13. The Zombie Outbreak — A possessed pet becomes the carrier of a virus that turns students into zombies. Odd is infected, while Ulrich and the other students fight to contain the outbreak.
  14. An Impossible Ultimatum — The hostile intelligence kidnaps Odd and Yumi and demands that Jeremie deliver Aelita. Jeremie and Aelita seek Sissi's help, and Sissi temporarily joins them to protect her father and stop the attack.
  15. Unstable Bodies — A malfunction causes Odd and Yumi to exchange bodies, while their atoms begin splitting after devirtualization. The group must repair the problem before they permanently disappear.

Seasons

Interactive Features

Episode Guide

Content sources

Plot analysis generated from content on Wikipedia, licensed under CC BY-SA 4.0.

Related entry on Wikidata (Q637190), public domain (CC0).