Shaggy receives a letter, telling him that his uncle Beaureguard has passed away, and in his will, he has left Shaggy the rights to the old Beaureguard Plantation, and the treasure hidden within. However, upon arriving at the creepy-looking property, the trio is chased by various kooky characters such as a headless horseman, a gorilla, and the ghost of Uncle Beaureguard himself.