A live-action film adaptation of the classic cartoon series. Shaggy and Scooby Doo are called to investigate the mystery of the popular horror resort Spooky Island. There they reunited with Fred, Velma, and Daphne, although they are unexcited to see each other. They learn from the park's owner that all the park's visitors seem to be cursed. They soon come across the dark spirit that has been possessing the island, who turns out to be a vengeful scrappy.