Our planet Earth and the parallel universe called Lyoko face the threat of annihilation. A super virus has infected the central processing units in X.A.N.A and only four kids can foil the mad computer's evil designs! Yumi, Ulrich, Odd and Jeremy lead doubles lives: ordinary students in their early teens by day, action heroes in the virtual digital world. Action and adventure. Swift pace. Rich graphics. Issues for today's kids. Science-fiction blends with sitcom in a cross-genre show that will have young viewers raving about "Code Lyoko".