Island of the Body Snatchers

S2 E3: When Thundarr, Ariel and Ookla investigate an island where there have been a number of unexplained shipwrecks, they find the lair of the sorceress Circe who has been cursed to turn to stone if she leaves her island. To escape, she must find a young sorceress whom she can trick into swapping bodies, a sorceress like Ariel!