The gang goes on a trip to check on Velma's younger sister, Madelyn. She's been studying stage magic at the Whirlen Merlin Magic Academy, where apparently there have been sightings of a giant griffin. The gang decides to investigate.

A man named Farmer sets out to rescue his kidnapped wife and avenge the death of his son, two acts committed by the Krugs, a race of animal-warriors who are controlled by the evil Gallian.