- Directors: Brian Levant
- Producers: Brian J Gilbert, Brian Levant
- Writers: Screenplay, Daniel Altiere, Steven Altiere, Characters and Series, Joseph Barbera, William Hanna
- Genres: Comedy, Family, Mystery
- Actors: Frank Welker, Nick Palatas, Kate Melton, Robbie Amell, Hayley Kiyoko, Gary Chalk
The film takes place in Coolsville, Ohio and begins as the cast is introduced on the school bus. As Shaggy walks down the aisle, one of the school’s jocks trips him. Fred, sitting next to him, asks him why he does it everyday. Shaggy tries sitting next to Velma and Daphne, but eventually sits by himself. At school, Shaggy’s trouble trying to get his locker door open results in him falling in a trashcan and rolling into the Principal’s office. The Principal suggests that Shaggy try to find some friends and sayaecide to take up a hobby like his: philately (stamp collecting).
Meanwhile, the Great Dane named Scoobert has been put up for adoption repeatedly at the monthly Pet Adoption fair, but never met with success. After the Adoption Fair, Scoobert is put in a small cage in a back of a truck. As the truck is driving down the road, it hits a bump and Scoobert falls out, gets out of the cage, and begins to wander around. As he is wandering through a graveyard, a strike of lightning resurrects a pair of ghosts named Ezekiel Gallows & Prudence Prufrock from their tombstones at the Cemetery. This frightens him, causing him to dash across town. He leaps into the first house he can find, which turns out to be Shaggy’s. They instantly become great friends, and Shaggy nicknames the dog “Scooby”.
In the final scene, Velma tells the gang about “strange goings-on” at the museum she heard about, and they all agree to get on the case once again. As the credits begin, scenes used during the opening intro to Scooby-Doo, Where Are You! and What’s New, Scooby-Doo? are recreated by the gang while the opening theme song to “What’s New Scooby-Doo” is playing.