It drops you into a Nanoha film that isn't really about Nanoha, and that's the flex. The Florian sisters carry it: Kirie running off with Iris to strip Earth for parts, Amitie chasing after her because someone has to be the responsible one on a planet that's already lost. Then Eltrian machinery starts unfolding over Japan, Raising Heart and Bardiche light up, and Dearche, Stern and Levi show up to remind you this series never met a lonely girl it couldn't punch into an ally. The 3DCG rigs and the sheer volume of beam geometry are the point here, not a compromise. Fair warning, it ends mid-sentence and hands the rest to Detonation, which is exactly the kind of cliffhanger this franchise has always felt entitled to. You will be annoyed. You will still queue the sequel that night.

Two sisters grow up watching their world collapse. Their parents are researchers who stay on the dying planet of Eltria hoping to revive it, but their efforts come to nothing, and their father falls gravely ill. Refusing to give up, Kirie defies her older sister Amitie and leaves home with her childhood friend Iris, crossing to a distant world in search of help. They arrive in Japan on Earth, looking for the key to restoring their planet. There Kirie pursues Earth's magical protectors, Nanoha Takamachi, Fate, and Hayate Yagami, who hold what she needs but will not simply hand it over. Soon Amitie follows her to Earth to stop her younger sister's reckless actions and bring her home. The film blends magical girl action with mecha and sci-fi elements in a drama about family and a world on the brink.