Air date: 10/10/70

The Mystery Inc. gang gets lost on the way to a rock music festival, and their Mystery Machine breaks down right in front of an allegedly haunted mansion. The gang enters the mansion looking for a bucket of water for their van's radiator, but find a headless specter figure, who attempts to drive them off of the grounds.

A Tiki Scare is No Fair

Air date: 10/17/70

Mystery, Inc's package vacation of Hawaii is interrupted by a witchdoctor, who warns the tourists and natives of the coming wrath of the god Mano Tiki Tia. The gang explores the area for clues, running repeatedly into the witchdoctor and a fifty-foot stone idol of Mano Tiki Tia.

Who's Afraid of the Big Bad Werewolf?

Air date: 10/24/70

Mystery, Inc's camping expedition is ruined by the presence of what appears to be the ghost of a werewolf. The gang pursues the werewolf, who haunts a local mill and the areas surrounding it, hoping to solve the mystery of its appearance.

Don't Fool with a Phantom

Air date: 10/31/70

Johhny Sands' dance-contest TV show, on which Fred, Daphne, Shaggy, and Scooby-Doo are contestants, is interrupted by a figure identified as the Wax Phantom. The gang trails the Phantom to the local wax museum, hoping to find clues and solve the mystery of the Wax Phantom before he causes more trouble.