
S01E01 Into Etheria
Sorceress discovers a gateway to another world. She sends Prince Adam and Cringer in to investigate. They find the new world to be enslaved by Hordak and his second in command, Adora.
Hordak drains He-Man of his energy to power up his Magna beam in order to destroy the Whispering Woods, where the Rebels live. Adora finally understands the truth about Hordak and becomes She-Ra to stop him.
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.