The gang try to solve the mystery behind the appearance of the 180-year-old man at a construction site.

The gang searches for a missing treasure while on their Mexican vacation.

Scooby and the gang solve the mystery of the Ghost of the Gator Ghoul; the Blue Falcon and Dynomutt fight the Gimmick.

Scooby-Doo and the gang solve the mystery of the 10,000-volt ghost.

In Sleepy Hollow, the gang investigates the legendary Headless Horseman when he shows up at a Halloween costume party at Crane Manor.

Shaggy's uncle inherits the old King Arthur castle and sends it to New England stone by stone. He also brought back the ghosts of Merlin and the Black Knight.

Scooby and the gang solve the mystery of Dr. Coffin; Blue Falcon and Dynomutt fight Superthug with his high-test steel super skeleton.

Scooby and the gang solve the mystery of the no-faced zombie; Blue Falcon fights Mr. Cool and a reprogrammed Dynomutt.

Scooby and the gang solve the mystery of a witch doctor and zombies; Blue Falcon and Dynomutt thwart the evil schemes.

Scooby and the gang solve the mystery of the red, hissing demon menacing a Seattle construction site; Blue Falcon and Dynomutt battle the Swamp Rat.

The gang encounters a flying bull and a gang of cattle rustlers while visiting Daphne's uncle at a ranch.

Scooby and the gang solve the mystery of the million-year-old humanoid shark; Blue Falcon and Dynomutt fight the unknown Ironface.

Scooby and the gang solve the mystery of Captain Pescado's ghost; Blue Falcon and Dynomutt battle the Red Vulture.

The gang attends a Hawks football game when the star player vanishes and the ghost of a long-dead 1930s football player appears.

Scooby-Doo and the gang solve the mystery of the ice cream phantoms; Blue Falcon and Dynomutt fight the dastardly Blimp.

Scooby-Doo and the gang solve a mystery at the Smithsonian; Blue Falcon and Dynomutt battle the evil Prophet.