In a medieval castle, a dark magician thought to be Mephistopheles conjures up a series of bizarre creatures and events in order to torment a pair of interloping cavaliers.
Professor Barbenfouillis and five of his colleagues from the Academy of Astronomy travel to the Moon aboard a rocket propelled by a giant cannon. Once on the lunar surface, the bold explorers face the many perils hidden in the caves of the mysterious planet.
