The headmistress' twin sister was always jealous of her position in the school. Together with her two friends, Blindschleiche und Zahnstein, she plans to turn the teachers and students of the witch academy into frogs and take over the boarding school. Mildred surprises the trio and is promptly conjured into the forest floor. Fortunately, she is discovered by Mrs. Drill and is released from her predicament. But the wicked witches already have a head start. Will she reach the academy in time to prevent the worst from happening?