Season
- Season 4 2007-08-13
- Season 3 2006-09-09
- Season 2 2005-08-31
- Season 1 2003-09-03
- Season 0 2006-10-21
Episode
- Episode 1: William Returns
- Episode 2: Double Take
- Episode 3: Opening Act
- Episode 4: Wreck Room
- Episode 5: Skidbladnir
- Episode 6: Maiden Voyage
- Episode 7: Crash Course
- Episode 8: Replika
- Episode 9: I'd Rather Not Talk About It
- Episode 10: Hot Shower
- Episode 11: The Lake
- Episode 12: Lost at Sea
- Episode 13: Lab Rat
- Episode 14: Bragging Rights
- Episode 15: Dog Day Afternoon
- Episode 16: A Lack of Goodwill
- Episode 17: Distant Memory
- Episode 18: Hard Luck
- Episode 19: Guided Missile
- Episode 20: Kadic Bombshell
- Episode 21: Canine Conundrum
- Episode 22: A Space Oddity
- Episode 23: Cousins Once Removed
- Episode 24: Music to Soothe The Savage Beast
- Episode 25: Wrong Exposure
- Episode 26: Bad Connection
- Episode 27: Cold Sweat
- Episode 28: Down to Earth
- Episode 29: Fight to the Finish
- Episode 30: Echoes
Code Lyoko Season 4 William Returns
7.4/10 users 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.
