Code Lyoko.

About Code Lyoko

Code Lyoko is a French anime-influenced animated series created by Thomas Romain and Tania Palumbo and produced by MoonScoop for Cartoon Network, France 3 and Canal J, with the participation of Conseil Général de la Charente, Pôle Image Magelis, Région Poitou-Charentes, and Wallimage. The series centers around a group of teenagers who travel to the virtual world of Lyoko to battle against X.A.N.A., a hostile artificial intelligence which seeks to attack the real world. The scenes in the real world employ traditional animation with hand-painted backgrounds, while the scenes in Lyoko are presented in 3D CGI animation. The series began its first 97-episode run on September 3, 2003, on France's France 3, and ended on November 10, 2007, and on Cartoon Network in the United States on April 19, 2004, and ended in 2008 after its final seven episodes aired online at Cartoon Network video.