In the early 1980s, the world of action figures and children's entertainment was revolutionized by the introduction of a powerful hero and his nemesis. This hero was He-Man, star of "Masters of the Universe," a franchise that spanned toys, cartoons, comics, and a live-action movie. The film delves into how an innovative team at the toy company Mattel created He-Man as a response to declining toy sales and the phenomenal success of other action figure lines. Set against the backdrop of a shifting cultural landscape, creators sought to build a storyline around a character who was both relatable and aspirational. The film explores how He-Man's origins paralleled societal changes, addressing themes like bravery and responsibility.

The documentary expands its focus to examine the broader impact of He-Man and the "Masters of the Universe" phenomenon on popular culture. It delves into the initial success that saw kids across America enchanted by Eternia's tales, and their longing to fight alongside He-Man against Skeletor. Interviews with creators, voice actors, and fans depict how one character engaged millions globally, bridging animation and toy marketing. Additionally, the film touches on challenges faced by the franchise over decades, such as evolving consumer interests and competition from other media giants. Through comprehensive yet captivating storytelling, it paints a vivid picture of triumphs and tribulations in building a cultural icon while leaving viewers fascinated by the enduring legacy of a legendary warrior universe.