Undersea Fleet Submarine 707F

The film follows Submarine 707 on a mission to confront a mysterious object that threatens ships and submarines. Summoned by a whale, the crew embarks on a journey to the world of Mu, where they encounter the enemy Commander Red Silver, who seeks to exploit Mu's magma resources. The narrative blends high-stakes action with themes of exploration and environmental preservation.

With a voice cast that includes Masako Katsuki and Kosei Tomita, this anime film offers a glimpse into 1990s animation styles and storytelling. Collectors of physical media will appreciate the unique blend of genres and the artistic contributions of J.C.STAFF and Toei Animation. The movie's theme of underwater adventure and the manga-inspired narrative may resonate with fans of the genre.