When Adam, Prince of the planet Eternia, raises his magic sword he transforms into He-Man (the most powerful man in the universe). With his allies and friends, he battles the evil Skeletor and his minions to protect the secrets of Castle Greyskull.

Once a paradise fueled by the all-powerful sorcery-grade metal known as bloodsteel, the distant land of Mirabilis begins to decay as supplies of the supernatural substance dwindle. The evil warlord Dragon Eye fights to gain control of the world's supply of bloodsteel, which he will use to rule Mirabilis. But, an ancient prophecy propels four ordinary citizens to battle Dragon Eye. Their quest is to find the fabled Crucible - source of all bloodsteel - before the corrupt forces of darkness destroy their world.