The planet of Primus is in danger from constant attacks by the mutant residents of its sister world, Denebria. The planet's ruler, Master Sebrian, realises that the time has come to bring the power of the good and the way of the magic from the past to defend Primus against the Mutants. Two space pilots, Captain Hydron and Flipshot, are sent to the world of Eternia in the past to find the power to defend them.
But when they reach Eternia, they wind up as prisoners of the evil Skeletor, when one of his men captures them. But when Skeletor learns of their mission, he tricks them into thinking that he is the force of good they are looking for.
Meanwhile, Eternia's defender, Prince Adam aka He-Man, has been informed by The Sorceress of Grayskull that he must go to the future to defend Primus. He reveal
