He-Man and the Masters of the Universe

Masters of the Universe (commonly abbreviated MOTU and sometimes referred to as He-Man, after the lead hero) is a media franchise created by Mattel. The main premise revolves around the conflict between the heroic He-Man, real name Prince Adam, and the evil Skeletor on the planet Eternia, with a vast line-up of supporting characters in a hybrid setting of medieval sword and sorcery and sci-fi technology. Later spin-offs, especially She-Ra, Princess Of Power, also featured He-Man’s sister She-Ra and her struggle against the Evil Horde, along with other planets/settings; however the main premise usually remained the same. Since its initial launch, the franchise has spawned a variety of products, including six lines of action figures, four animated television series, several comic series, a daily newspaper comic strip, and a feature film.

The show takes place on the fictional planet of Eternia, a planet of magic, myth and fantasy. Its lead character is Prince Adam, the young son of Eternia's rulers, King Randor and Queen Marlena. Whenever Prince Adam holds the Sword of Power aloft and proclaims "By the Power of Grayskull!" he is endowed with "fabulous secret powers" and transformed into He-Man, the most powerful man in the universe. Together with his close allies, Battle Cat (who undergoes a similar transformation from being Adam's cowardly pet tiger Cringer), The Sorceress, Teela, Man-At-Arms and Orko, He-Man uses his powers to defend Eternia from the evil forces of Skeletor. Skeletor's main goal is to conquer the mysterious fortress of Castle Grayskull, from which He-Man draws his powers. If successful, Skeletor would have enough power to rule all of Eternia and possibly the entire universe.