Code Lyoko 2003
Code Lyoko centers on four children who travel to the virtual world of Lyoko to battle against a sentient artificial intelligence named XANA, with a virtual human called Aelita.
Specials
2006
2 episodes
Specials of Code Lyoko premiered on October 21, 2006.
First episode where they discover the factory.
Season 1
2003
26 episodes
Season 1 of Code Lyoko premiered on September 3, 2003.
After discovering a parallel universe hidden inside a supercomputer, four students must stop a renegade virus from destroying the secret world.
Season 2
2005
26 episodes
Season 2 of Code Lyoko premiered on August 31, 2005.
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
2006
13 episodes
Season 3 of Code Lyoko premiered on September 9, 2006.
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
2007
30 episodes
Season 4 of Code Lyoko premiered on August 13, 2007.
Jeremy and Aelita must rebuild a new Lyoko to replace the one XANA maliciously destroyed at the end of the third season.