Skeletor stole stardust, the most precious treasure in the universe. He-Man, his mount Battle Cat, his friend Man-at-Arms and the clumsy wizard Orko set out to retrieve the treasure from the lord of evil. But they fall into a trap.
Skeletor attacks and hits He-Man's best friend. Immediately, he rushes to the rescue. But that was part of Skeletor's plan. He built a trap and He-Man gets caught in it and is thrown into the ancient past with no hope of return.
Skeletor makes his biggest move yet and the attack on Castle Grayskull begins. A robot army storms the fortress and the situation seems hopeless. Skeletor has a mighty ally - the magician of evil who is said to be invincible.
Skeletor, Castle Grayskull's adamant enemy, attacks the fortress yet again. And this time he has an ally nobody accounted for and who seems invincible. It is only a matter of time until Castle Grayskull falls.
Skeletor, warlock of evil, never stays still. He wants the power over the planet of Eternia. He takes Teela hostage into the cave of terror and waits until He-Man gets caught in his trap. The battle seems to be settled.
Skeletor continuously battles for the power over Eternia. This time he conceived an especially insidious plan. He lures Adam, prince of Eternia, into a trap - unknowing that Adam can transform into He-Man once he summons his Power Sword.
Skeletor, lord of evil, does whatever it takes to conquer Castle Grayskull. He creates a doppelganger of He-Man. The doppelganger manages to infiltrate Castle Grayskull. Doom takes its course.
Skeletor attacks Avion, the city in the Mystic Mountains. Stratos, lord of the city, reaches out for He-Man - but this time, the Master of the Universe has to battle enemies he is not able to fight with his Power Sword alone.
Skeletor, lord of the underworld, attacks Castle Grayskull again. This time he lets a magician infiltrate the castle. While He-Man strays away from Castle Grayskull more and more, all others seem to be enchanted by the magician Reigam.
Skeletor takes a deadly risk and wins unlimited power. He-Man suffers a great defeat and it seems Eternia is lost. There is only a small chance left for He-Man and his friends.
A boy named Martin is transported to the planet of Eternia. He meets Man-at-Arms who explains the world of Eternia to him and the everlasting struggle between He-Man, the masters of the Universe and Skeletor, lord of evil and his minions.
