After the death of Shaggy's Uncle Beaureguard, he, Scooby, and Scrappy arrive at his uncle's plantation to collect the inheritance. But as soon as they arrive, they find it is haunted by the ghost of a Confederate soldier. With this spook on their tails while they search for Shaggy's inheritance, they hired to help of the Boo Brothers, a trio of ghost-exterminators to help catch this nasty ghoul.
Beverly hills dowager leaves everything to Benny the Ball because her only rightful heir, her niece Amy, is missing. But that's only if Benny stays alive for 48 hours. If not, evil butler Snerdly and his mad Russian Wolfhound are next in line - and he's quick to pull every trick in the book to do poor Benny in and the troop sets off to rescue Benny and find the lost heir Amy.