Hordak is the commander of the Evil Horde. The Horde is a military operation that occupies the planet of Etheria, but is constantly being challenged by the heroic members of the great rebellion. Hordak was originally the teacher and mentor of the evil wizard Skeletor. Hordak taught Skeletor all of his magic techniques. The two eventually became bitter enemies which led to Hordak fleeing to Etheria in an attempt to conquer that world. Hordak's plans for conquest and domination are constantly thwarted by the Two Heroes Sought to Defeat them.