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
Skeletor has Slush Head take pictures of different areas on Primus. An ambitious councillor of Primus called Werban is telling the Scientists of Primus that they waste their time with Sebrians ideas of time travel, just then Sebrian and Mara enter with He-Man and introduce him as the new saviour of Primus. Just then they are informed of an attack by a mutant fighter on the Oasis, where Drissi and Caz are, He-Man races off to save them. Slush Head is chasing Caz and Drissi in his mutant fighter when He-Man arrives and saves them, Slush Head spins out of control and return to the Mutant mothership where he reports to Skeletor and Flogg and Skeletor reveals his plan to destroy the Trithuseum generator on Primus. Drissi introduces He-Man to her admiring brother Caz, who soon becomes a new friend of He-Man. Meanwhile, The Mutants send fight
After fooling Primus with their offer of peace, The Mutants finally succeed in conquering the planet. Still the joy of the Invaders invaders holds itself within limits, because could He-Man and some others have escaped into the underground, where they continue to offer embittered resistance to the conquerers...
After Quakke and Butthead are captured, He-Man discovers that the Scientists of Primus have created a machine called the 'Mutator' which can change any Human into a Mutant, He-Man volunteers to become a mutant so that he can spy on Skeletor but when he goes into the machine he is changed not just in body but in mind, he smashes the mutator and then rescues Butthead and Quakke. The three then capture Hydron and Flipshot and return to Nordor in the Starship Eternia. Skeletor recruits the mutated He-Man, not realising who it is, and names him Cruncher. Skeletor had Quakke and Butthead captured on purpose, their ship which has been captured and is still on Primus releases a device called the Disruptor which disrupts the council of Primus' brainwaves and with them unable to concentrate the shield around Primus is gone. Skeletor and Flogg arrive on Primus and storm the Council chambers, capturing Master Sebrian and Mara. He-Mans loyal bird, Clobbe
He-Man suffers under homesickness after being away from Eternia for so long, and the Sorceress sends his old friend Teela from Eternia to join him in the future. Skeletor meanwhile finds a volume of the Encyclopedia of evil, with the entire encyclopedia he would be unbeatable so he travels to the vault of Zaktus where he assumes the other volumes of the encyclopedia to be...
An elderly lady called Melindra is a BIG fan of He-Man's. She goes to hear a speech made by He-Man. As He-Man has left his space ship he and his fellow friends are greeted by a crowd of fans. Melindra runs up to He-Man and has her picture taken with him. Once He-Man and his friends are away from their space ship Melindra decideds to sneak on the ship, so that she can see He-Man's space ship. He-Man and his friends come aboard the ship to go on a mission and the Melindra stows away on the space ship...
Slush Head and Staghorn find a rock star from the past named Hank Rappa, and bring him back to Nordor where Skeletor notes how Humans seem to have a weakness for music and perhaps Primus does too...Meanwhile Adam hears about a new rock concert coming up and as He-Man he will be escorting Caz and Drissi there. Meanwhile, Skeletor is the one who has set up the concert with the alien Torzag, he intends for He Man and the Galatic Guardians to be destroyed when they attend the concert...
Flogg gets some new laser cannons, and attempts to use them to destroy Starship Eternia, however the Eternia is able to destroy the cannons. Skeletor notices that the gas from the exploding cannons is causing damage to Primus' shields and forms a plan to destroy the shield using the gas.The Guardians are congratulated for destroying the new laser cannons by the Scientists, but Master Sebrian has noticed the damage done by the gas, and grows worried. Skeletor shows Flogg his new Floating Gas factory, which they will send to Primus to destroy the shield. Flogg orders Slush Head to go down to Primus and prepare the way for their attack.Master Sebrian orders Flipshot and Spinwit to go and destroy the Factory, which is now damaging the shield and causing lightening storms on Primus, He-Man goes after a mutant fighter that has landed. Slush Head reports to Skeletor that there is no resistance as He-Man arrives and the two battle
Skeletor is frequently bombarding one area of the shield of Primus, forcing the councillors to concentrate all of their energy on that sector, to Floggs surprise, he wants Primus to attack them. On Primus, Master Sebrian is tired from the recent attacks, and Mara says that he and the councillors desperately need rest, He-Man heads off to attack the Mutants and stop the attack. As Primus fights back, Skeletor releases a small shuttle from the mothership containing a super computer, which He-Man captures and takes back to Primus. The Scientists discover that the super computer contains the ability to produce Clones, and they decide to produce clones of the Councillors so that the real councillors can finally have some rest. The Scientists build their machine and the clones march out and into the council chamber, but soon after Sagitar tells Sebrian that the shield is down and Skeletor is on his way.The Clones put a shield up ar