
While covering a test of guided torpedoes, two reporters believe they see what appears to be a strange-looking swimming creature. They investigate the matter further and discover that there is a race of fish-men living under the sea. The fish-men capture the pair and keep them prisoner in their underwater city.

as Ken Abe

as Jenny Gleason

as Commander Brown


as Dr. Moore

as Dr. Josef Heim


as Submarine captain


as Nishida

as Henchman


as Nakamura


as Female researcher


as Bill

as Captain Bob