Undersea Raider at Large!
Mystery Submarine
Posing as an ex-German medical officer, a U. S. Navy Intelligence Officer sets out to rescue a kidnapped scientist, and sink a Nazi submarine, hiding off the coast of South America.
Top Billed Cast
Macdonald Carey
Brett Young
Märta Torén
Madeline Brenner
Robert Douglas
Commander Von Molter
Carl Esmond
Heldman
Ludwig Donath
Adolph Guernitz
Jacqueline Dalya
Carla
Fred Nurney
Bruno
Katherine Warren
Mrs. Weber
Howard Negley
Captain Elliott
