Scooby and the gang confront an anonymous masked villain who is plotting to take over the city of Coolsville by wreaking mayhem with a monster machine that creates Mystery Inc.'s classic foes.

The movie was a box office success, leading to a sequel, Scooby-Doo 2: Monsters Unleashed ... Monster (2010), and the direct-to-video film, Daphne & Velma (2018). There was also a fan-made ...