The
series started off straightforwardly enough, telling simple
adventure stories from the planet Eternia. The prince
of Eternia, Adam, has a magic sword which can transform
him into He-Man, an incredibly powerful defender of the
kingdom. His nemesis, the evil Skeletor, plots with his
henchmen to conquer Eternia, and also to control the mysterious
Castle Greyskull from which He-Man gets his power. After
throwing in a few allies for He-Man, a lot of melodramatic
comic-book dialogue, and the occasional magic artifact,
another typical cartoon adventure series was born.