Fourth live-action/CGI-animated children's adventure comedy based on the Hanna-Barbera cartoon series. Shaggy (Nick Palatas), Velma (Hayley Kiyoko), Daphne (Kate Melton), Fred (Robbie Amell) and Scooby-Doo (voice of Frank Welker) go to work at Uncle Thorny (Ted McGinley)'s country club in Erie Point during their summer holiday. When a big green creature shows up at the club, causing chaos, Thorny loses a great deal of his customers so the gang decide to help him by investigating the legendary curse of the lake monster...