The gang lands their plane in a town populated by werewolves; Bogel and Weerd trick Scooby and Shaggy into opening the chest of demons; pint-sized conman Flim-Flam joins the gang.

Horror host and demon chest escapee Zomba magically transports Scooby and the gang into the film "The Son of the Bride of the Ghost of Frankenstein."

Scooby and the gang have to stop three bumbling witches who are in cahoots with demon Marcella.

Scooby has a traumatic experience with demon Time Slime and is replaced by lazy Bernie Gumshire, but Vincent Van Ghoul shows what will happen to the gang if Scooby doesn't come out of retirement.

Bogel and Weerd help demon Demondo imprison Scooby and the gang in the funny papers.