Skeletor attacks the royal palace - with millions of wasps. He-Man is powerless against this assault. There is only one hope - Buzz-Off, lord of the wasps, but he vanished. Skeletor has taken him. Skeletor's victory begins to show.
Skeletor calls the conference of evil and the dominators of the underworld gather at Snake Mountain. Even the cosmic magician Zodac appears. He knows the future of all Eternians and predicts a victory for Skeletor.
The royal family takes a sea trip. Now Mer-Man can realize his insidious plan. Skeletor calls his monster as well. The Masters fight for their lives - but Skeletor and Mer-Man have an uncanny ally - the fabled, unvanquished Ice Bird.
Skeletor kidnaps Man-E-Faces and vanishes without leaving a trace. The ghost of Castle Grayskull has only one clue: The laughing bridge. The Masters stand before a riddle that seems to be unsolvable. Will they ever see Man-E-Faces again?
Skeletor backs off before nothing to win the power over Eternia. Although his fellows warn him insistently he builds the "Machine of Power". Once he turns it on a catastrophe hits Eternia. It seems like the planet is beyond saving.
Skeletor makes a dangerous find - a tablet of the lost magicians. It makes him so powerful he is able to capture the Masters of the Universe. He-Man and Battle Cat manage to escape. But He-Man is unable to counter Skeletor's magic powers.
Mekaneck, the galactic scout, accepts his inheritance. But before he grasps what it means Skeletor gets his hands on it and turns it into a dangerous weapon against Eternia. He-Man and the other heroes fight for the freedom of the planet.
Skeletor strikes yet again against He-Man. Using a robotic horse he smuggles a weapon into the royal palace - and suddenly he is master of Eternia. He-Man fights on a last stand because the ghost of Castle Grayskull is gone.
Snake lord Kobra Khan cannot forget that He-Man humiliated him. He wants revenge. He lures the Master of the Universe into a gruesome trap. Is He-Man able to free himself from it? It seems hopeless because Skeletor seized the Power Sword.
A horrible monster appears in Eternia and nobody knows where it came from. But then, the riddle is solved but nothing is won because the demonic monster Modulok seems invincible. Is He-Man standing before an unwinnable battle?
Skeletor and a new ally strike when the royal family leaves the palace. They attack the royal train and leave beyond time and space. The abducted seem lost forever. But then He-Man remembers the Talon Fighter and dares the impossible.
Skeletor connects himself to a young dragon. This way, the monster has to accompany him in fights against He-Man. But Man-at-Arms develops a new, powerful weapon: A power armor for He-Man. An inevitable duel will show who is stronger.