Specials

October 21, 2006 | 2 Episodes

First episode where they discover the factory.

Season 1

September 3, 2003 | 26 Episodes

After discovering a parallel universe hidden inside a supercomputer, four students must stop a renegade virus from destroying the secret world.

Season 2

August 31, 2005 | 26 Episodes

The Lyoko Warriors have their work cut out for them as XANA gains power, with an ability to possess humans and create even more mayhem on Earth.

Season 3

September 9, 2006 | 13 Episodes

As Season 3 opens, XANA has escaped from the supercomputer and is bent on destroying Lyoko so that the Warriors will be unable to stop his evil plots.

Season 4

August 13, 2007 | 30 Episodes

Jeremy and Aelita must rebuild a new Lyoko to replace the one XANA maliciously destroyed at the end of the third season.