The gang visits Velma's relatives during a Halloween festival headlined by Kiss but the festivities are interrupted by the ghost of the town's founder and a bevy of living scarecrows.

The secret six puppies are dognapped from the dog show, and it's up to Scooby-Doo and the gang to rescue them.

While attending the Grind Games, the gang runs into the ghost of an Alcatraz prisoner, who is targeting members of the competition.