Welcome to Detroit, home of the automobile, the assembly line, and heavy metal warfare! Ace Spade, a young metal head, get his life turned upside down when he receives a guitar possessed by the spirit of rock god Eddie Lee Stryker, who was murdered by the beautiful and deadly crime boss Mrs. Delicious. After discovering that Delicious plans on blowing up the local Battle of the Bands, Stryker endows Ace with heavy metal powers and the ability to turn into a gigantic metal monster so he can shred Delicious and her minions to pieces!