The trio investigate a sector called the Mystery Zone where several ships get wrecked on an island. They learn the evil witch Circe is behind it all. She needs a young sorceress to overcome a curse in which she will turn to stone if she leaves the island. When Ariel appears, Circe ceases the opportunity as she switches bodies with Ariel and becomes a threat to the others as she tries to leave the island.
—Lara Cain