The entire film hinges on a single visual inversion that reframes everything you thought you understood about the world. You watch two characters literally fall toward opposite skies, and suddenly the movie stops being about gravity and becomes about how easily we mistake our perspective for truth. What breaks the concept-first structure are the moments when two people from inverted worlds have to trust each other anyway, perspective be damned.

Patema lives in an underground world of dark, cramped tunnels, where people wear protective suits and lead modest, contented lives. As the curious princess of her community, she keeps exploring a danger zone her people forbid, even though no one will tell her what the danger is. After a strange creature startles her there, she falls into a deep pit and emerges on the surface, a world turned upside down, where she starts falling toward the sky. Age, a discontented student from the totalitarian nation of Aiga, saves her. Aiga teaches that Inverts like Patema are sinners, but Age rejects that belief and chooses to protect her. Together the two teenagers set out to uncover the secrets of where their peoples came from, in a science fiction adventure with a romantic thread about learning to coexist across differences.