The eighth season of Code Lyoko is a project for fans and the continuation of the season 7, and this is the third and last season created by Rex Salazar.
The eighth season begins a week after the explosion of the Factory in the last episode of the seventh season, the FBI arrests the Lyoko-Warriors and centres that Lyoko is inaccessible after the destruction of the Factory where Alex Nicolas has died and the destination of Franz Hopper is uncertain. The Lyoko-Warriors are detained in a juvenile facility by FBI agents. Alex's fate is revealed. The main antagonist is the organisation Checkmate who obtains the total control of Lyoko, somebody anonymous releases the Lyoko-Warriors of the FBI but later they're blackmailed or controlled in exchange for getting something important.