When Adam, Prince of the planet Eternia, raises his magic sword he transforms into He-Man (the most powerful man in the universe). With his allies and friends, he battles the evil Skeletor and his minions to protect the secrets of Castle Greyskull.
She-Ra, He-Man's twin sister, is leading a group of freedom fighters known as the Great Rebellion in the hope of freeing their homeworld of Etheria from the tyrannical rule of Hordak and the Evil Horde.
After experiencing traumatic nightmares of a time now past, the Sorceress summons Prince Adam and Cringer to Castle Grayskull to give Adam a precious, jeweled sword and send the pair to the planet Etheria to investigate its secrets.
