Max is an outcast little boy who has become lost in his own fantasy world in an attempt to escape the everyday worries of dealing with parents, school bullies and no-fun summer vacations. But when Max realizes the characters and adventures in his imagination might be more real than anyone else believes, his whole world changes. Now, Max is blasting off on a mission to Planet Drool where his superhero friends Sharkboy and Lavagirl live, and where the evil Mr. Electric threatens to do away with all dreams forever.