Scooby-Doo! Meets the Boo Brothers

The story takes place at Beauregard Manor, a Southern plantation estate filled with hidden passages and a secret underground tunnel. The manor sits on sprawling grounds surrounded by woods and a family cemetery, creating a classic Southern Gothic haunted house atmosphere for the treasure hunt.

The Boo Brothers are a trio of ghost-exterminators called in by Shaggy and Scooby to help catch the phantom haunting Beauregard Manor. Comprised of Meako, Freako, and Shreako, they are goofy, well-meaning ghosts who fail at first to banish the hauntings, turning the mystery into a comedy of errors.

After Uncle Beauregard dies, Shaggy inherits Beauregard Manor and the estate. The inheritance comes with a hidden fortune in jewels, which drives much of the conflict. The treasure is tied to the Beauregard Trust Fund for Orphans, turning the pursuit of wealth into a means to support others.

The movie explores several themes including greed and deception, as the pursuit of hidden jewels leads to impersonations and double-crosses. It also deals with legacy and inheritance, with Shaggy confronting family ties and responsibilities. The contrast between hauntings and reality runs throughout, with ghosts eventually revealed as human tricks.

The core characters are Shaggy, Scooby-Doo, and Scrappy-Doo, who travel to claim Shaggy's inheritance. They are joined by the Boo Brothers and face various antagonists including the greedy Sheriff Buzby, the feuding Billy Bob and Sadie Mae Scroggins, and the creepy manservant Farquard.

The main villains are Sheriff Rufus Buzby, who secretly impersonates the Skull Ghost to steal the treasure, and the Scroggins family, Billy Bob and Sadie Mae, who are involved in a long-standing feud with the Beauregards. Farquard, the manservant, also serves as a suspicious antagonist.

This is a lighthearted animated comedy-mystery in the classic Scooby-Doo style. The tone is whimsical and fun, with no real horror elements, all supernatural threats are revealed as hoaxes. It features continuous chase sequences, ghostly apparitions, and comedic problem-solving with a happy ending.

Colonel Beauregard is the estate's patriarch who appears as a haunting figure throughout the mystery, leaving treasure-hunting clues for the protagonists. His legacy frames the mystery and connects the present to Beauregard family history, though he is eventually revealed as part of the deception.

The Skull Ghost is the primary antagonist who uses ghostly intimidation to coerce the protagonists and protect the hidden treasure. The ghost is ultimately revealed to be a human impostor, Sheriff Buzby in disguise, who uses the persona to steal the Beauregard fortune for himself.

The movie uses a Southern Gothic setting with Beauregard Manor as a haunted plantation estate. The landscape features woods, a family cemetery, hidden passages, and secret tunnels. This atmospheric setting blends humor with ghostly lore, providing the stage for a treasure hunt that twists through the mansion and grounds.