In this animated adventure, the Mystery Inc. gang embarks on an exciting trip to the charming town of Oakhaven to attend the Autumn Festival. But what should be a fun vacation turns into a spine-chilling mystery when rumors begin to swirl about a ghost haunting the town: the spirit of a powerful witch! The renowned horror author, Ben Ravencroft, an old friend of Velma's, is in town to promote his latest book on local folklore and is determined to uncover the truth behind the witch legend.
As the group explores the town's history and its dark past, they realize that the ghost is not only terrorizing the locals but is also trying to protect an ancient secret that could change everything. As if that weren’t enough, the gang faces several obstacles, from a mysterious cult to a slew of traps designed to scare them.
Using their usual wit and a bit of teamwork, Scooby and his friends must solve the mystery before the festival turns into a real supernatural disaster. As they delve deeper into the story, they uncover an unexpected connection between Ben, the witch, and the town, leading to a climax full of unexpected twists. With laughs, scares, and that classic touch of mystery, this adventure promises to keep fans of all ages on the edge of their seats.