Upon capturing and cloning the legendary Pokémon Mew, a team of scientists create a superintelligent being above all others. Soon this being, known as Mewtwo grows more powerful and questions his purpose in life. Soon he meets with Marvin The Martian and Vilgax, and a brainwashed samurai from another time they captured, with whom he becomes acquainted with. Mewtwo soon holds a tournament for the strongest warriors in the world to fight. Among some of the contenders include Jimmy Neutron, Danny Phantom, Dexter, Ben 10, Ash Ketchum and SpongeBob SquarePants, among others. Soon they realize the reason they are fighting is not just, and team up to take Mewtwo, Marvin, and Vilgax head on with allies they meet along the way
