Aelita convinces Geoff, Bridgette, Gwen, and DJ help her and they are virtualized onto Lyoko. Upon their arrival they were quickly attacked by XANA's monsters and have to struggle with their new weapons and powers if they are going to save LeShawna as a Krab materializes in the lab to stop the new Lyoko Warriors.
- XANA's Kankerlats and Bloks are upgraded into newer, more dangerous monsters called Spiderlings and Pyramids
- The Terror Bird that helped capture the original Lyoko Warriors returns
- Aelita explains her past to the new warriors, including her father's sacrifice in Fight to the Finish