All cartoons
Poster for Code Lyoko (2003)

Code Lyoko

First aired
2003
Length
4 seasons, 95 episodes
Genres
Sci-Fi & Fantasy, Animation, Comedy, Action & Adventure, Kids

Four children travel to the virtual world of Lyoko to battle against a sentient artificial intelligence named XANA, with a virtual human called Aelita.

Where to watch in the UK

Stream
Amazon Prime Video
Buy
Apple TV Store, Amazon Video
Get the links on TMDB

Data from JustWatch, checked 2 November 2026. It may have changed since.

Cast, trailers and more on TMDB