While putting up Shaggy's papers for his morning route, Scooby runs into a green monster that steals Shaggy's bike. The gang traces it to a haunted house where they find a room full of counterfeit money.

Scooby and Shaggy are at the Coolsville comic book convention where they learn their old friend has been saving the #1 comic book of Commander Cool for them. They find themselves in trouble when one Commander Cool's enemies comes to steal the comic book.