Adam is happy to be back home on eternia. Especially with the power to wield The sword and become the most powerful man in the universe He-Man. And fighting by his side are Captain Teela, his pet tiger Cringer (Battle Cat), his inventive mentor Duncan (Man-at-Arms), and the little trollan wizard Orko (who was powerful and mighty in his home world but in eternia he's rather clumsy and all he really wanted was to make friends).
The sorceress informs the Masters of the Universe gang that Evil-Lyn is about to bring skeletor back to his former glory. Especially before he had a permanent skull face. Skeletor is still alive even though he's just a disembodied skull. And what he doesn't know is that Evil-Lyn is actually going to restore him to make him her own powerful SERVANT.
Besides being the most powerful man in the universe Adam is also heir to the throne after King randor sacrificed himself to save his own son. So life as a king is going to be very complicated for adam. He also has to find his own future Queen.
And right when our heroes need more help Another hero arises. A warrior woman named Adora who happens to be Adam's long lost sister