Code Lyoko tells the story of a group of students who uncover a parallel universe called Lyoko inside a super-computer that is threatened by a virus that could destroy the universe. Three boarding school students and a day student, Jeremie, Odd, Ulrich, and Yumi, must help a virtual humanoid creature named -Aelita- to stop rogue computer X.A.N.A.'s latest attack on their real world. Series 1: Yumi, Odd, Ulrich, Projectile Launching Block