Scooby-Doo Meets the Boo Brothers is a 1987 animated made-for-television film produced by Hanna-Barbera Productions. The movie features the popular Mystery Inc. gang comprising Fred Jones, Daphne Blake, Velma Dinkley, along with Shaggy Rogers and his nephew Scrappy-Doo. The movie is directed by Paul Sommer and Carl Urbano.
The story mostly revolves around Shaggy and his inheritance of an old Southern plantation estate, which is haunted. Shaggy along with Scooby and Scrappy sets off on a road trip to claim his inheritance. They are soon joined by the Boo Brothers- a trio of ghost hunters consisting of Meako, Shrieko, and Flio.
The mansion is filled with supernatural creatures like headless horsemen, walking skeletons, a phantom civil war army, and a menacing butler. An old diary written by Shaggy's uncle reveals that the ghost of Confederate General, Beauregard Sanders, is haunting the plantation and is seeking a hidden treasure.
Scooby, Scrappy, and Shaggy team up with the Boo Brothers to solve the mystery. The Boo Brothers bring in their ghost-hunting skills, and the team undergoes various antics and hilarious moments while solving the case.
In the end, the mystery is unraveled, and the treasure is discovered, leading to a happy ending for all. The movie is packed with adventure, humor, and spooky elements, making it enjoyable for both kids and adults.