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.

Cast: Bob Arbogast, Susan Blu, Hamilton Camp, Patricia Elliott, Arte Johnson, Casey Kasem, Kenneth Mars, Don Messick, Sidney Miller, Howard Morris, Pat Musick, Heather North, Vincent Price