Casper, the Friendly Ghost, is thrown out of The Frightening Army by its Unfiendly Ghost's members, and wander on over to Fairy Tale Land, where he finds Little Bo Peep crying over her lost sheep.

Casper, the ghost, begins taking some very strange lessons at a new school on how to be really mean. With all the lessons and the hands-on experiments, can Casper turn his "boo!" into something really ...