It's Halloween and the gang gets set out for trick or treating. At their friends the Johnsons' house, they learn that there is a real ghost living there. The ghost is a sweet one or so they think. The ghost of a long dead pirate comes demanding the Johnsons move away. The real ghost asks the gang to help save his house.

The gang goes to spend a wonderful weekend at Daphne's house. They befriend her security guard who's helping Daphne try to find the thief that's in her house. Shaggy and Scooby soon discover that the thief is a dead chef that was fired years ago.