When her broom breaks down, an old witch temporarily borrows an ordinary one from a nearby farm, but forgets to take the magic out when she returns it.
The old witch saves the farmer, the town, and herself from the ravages of the Dragon of Thunder Mountain, who comes down from his mountain every hundred years.
After the witches capture the night fairies, Weeny Witch helps them escape and discovers that she too is a night fairy, stolen years before by the witches.
