The Lyoko warriors encounter an artificial intelligence program. His format: Guardian. They learn of a war against a virus named Megabyte, and that Xana is involved. They race to a small system called Mainframe, and help Bob, Dot and Matrix in the fight.
Crossover - Reboot & Code Lyoko - Rated: T - English - Adventure/Suspense - Chapters: 10 - Words: 58,543 - Reviews: 33 - Favs: 31 - Follows: 21 - Updated: 1/24/2009 - Published: 10/1/2007