A headstrong teenager with a nose for trouble stumbles upon an ancient stone castle deep in the Eternia forest. There he meets a beautiful sorceress who gives him a magical weapon, the Power Sword, and tells him that ony he can save Eternia from the evil Skeletor. By raising the sword above his head, he transforms into He-Man, the most powerful man in the universe! Together with his heroic companions, Stratos and Man-at-Arms, He-Man takes on Skeletor and the Evil Horde in the battle for all Eternia!