Nadia: The Secret of Blue Water - The Motion Picture is an anime film that premiered in summer 1991, produced by GAINAX.

About the production: the story comes from an original script, the film runs about 87 minutes and its current status is "finished".

Its main genres are action, adventure, drama, mystery and romance, with themes such as Historical, Heterosexual, Female Protagonist and Aviation.

On AniList, Nadia: The Secret of Blue Water - The Motion Picture has an average score of 50%, an average score, and appears on 3,009 users' lists.

The franchise continues in or follows from: Fushigi no Umi no Nadia.

Three years after the defeat of Gargoyle and Neo-Atlantis, a new threat has surfaced bent on bringing the world under his control. Geiger, using advanced robot technology, is attempting to begin a world war, and take control of the devistated world after the destruction has stopped. Once again, Nadia and Jean must fight to save the world, only this time from itself. (Source: Anime News Network)

Official synopsis from AniList.