
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.
The Rebels have gathered at Mystacore to celebrate She-Ra's defeat of the evil sorceress Mortella and the reinstating of it's rightful ruler, Castaspella. Adora recounts the entire story to Kowl.
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.