Scooby-Doo! The Mystery Begins is a 2009 live-action/CGI television film that serves as a prequel to the Scooby-Doo film series. It follows the formation of Mystery Inc., exploring how the teenage versions of Fred, Daphne, Velma, Shaggy, and Scooby-Doo came together for the first time. When a ghost starts haunting their high school, the unlikely group must put aside their differences and work as a team to solve the mystery and clear their names. The film blends comedy, adventure, and a touch of nostalgia for fans of the classic cartoon.

Robbie Amell, Hayley Kiyoko, Kate Melton, Nick Palatas, Frank Welker