The Gods have been fighting an endless war with the Giants and now they're growing weak and losing their powers. So the God of Thunder, Thor, travels to earth to find help. He asks Erik, an ordinary boy, to go on a secret mission to the Land of the Giants. Together with Thor's daughter, Trud, Erik must rescue the Goddess of Youth and her magic apples. But time is running out. Can they rescue the Goddess and prevent the End of the World?