An evil sorceress transports the gang back to the age of chivalrous knights, spell-casting wizards, and fire-breathing dragons.

The gang goes on a trip to check on Velma's younger sister, Madelyn. She's been studying stage magic at the Whirlen Merlin Magic Academy, where apparently there have been sightings of a giant griffin. The gang decides to investigate.

Scooby and the gang experience outdoor fun as they go back to Fred's old summer camp. As summer goes on, it becomes increasingly clear that the spooky camp stories told by the fireplace, are more real than they've though and soon, it's up to the gang to try and solve the mystery of camp scare.