Feature-length animated adventure following the Mystery, Inc. gang who are this time joined by the band members of Kiss. Shaggy (voice of Matthew Lillard), Velma (Mindy Cohn), Fred (Frank Welker), Daphne (Grey Griffin) and Scooby-Doo (also Welker) go to the amusement park Kiss World where the band will be performing. While there, however, they discover that the evil Crimson Witch (Pauley Perrette) has been wreaking havoc at the park and is planning to summon a monster to destroy Earth. The gang use their mystery-solving skills to try to save the park and the world in time for Kiss to put on their rock show. Kiss members Gene Simmons, Paul Stanley, Eric Singer and Tommy Thayer lend their voices to their animated selves.