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.

Although featuring a vast line-up of characters, the main premise revolves around the conflict between the heroic He-Man and the evil Skeletor on planet Eternia. 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, and a feature film.

On the Planet Eternia, at the center of the Universe, Skeletor's army seizes Castle Grayskull, scatters the remaining Eternian defenders, and captures the Sorceress of Grayskull; he plans to add her power to his own by the next moonrise.

Skeletor's archenemy, the warrior He-Man, veteran soldier Man-At-Arms, and his daughter Teela rescue Gwildor from Skeletor's forces. Gwildor, a Thenorian locksmith, reveals that Skeletor has stolen his invention: a "Cosmic Key" that can open a portal to any point in time and space. The device allowed Skeletor to breach Castle Grayskull; the group uses Gwildor's remaining prototype to travel to the Earth (by accident, of course)

When Skeletor is raiding Earth after the "secondary Cosmic Key", he is using an "Attack Hover Platform", a smaller module form of this was used in Back to the Future 2 (as the "Pit Bull Hoverboard"). Since both "props/ toys" were designed by Mattel, well it is a "nice shout shout" to the designers of both movies.

This film also "guest stars" Robert Duncan McNeil of Star Trek Voyager and Courtney Cox of Friends in their initial Stage and Screen Roles