After Shaggy’s uncle leaves him a fortune in hidden jewels, Scooby and Scrappy join him for the
ultimate scavenger hunt through the trap doors and tunnels of the haunted old Beauregard mansion! Terrified by the ghost of Shaggy’s uncle, the gang calls in reinforcements —the wild-and-ectoplasmic Boo Brothers, a phantom family of ghoulchasing ghosts! Join them as they unravel the mystery.