“Calling All Agents! STAND BY FOR THRILLS! ADVENTURE! ACTION!”
Nazi spies use a stolen shortwave transmitter prototype to broadcast top secret shipping info to an offshore Japanese sub. To nab the spy ring, the Government has the West Coast's top radio engineers fired and shadowed to see if the Nazis recruit them to complete work on the prototype radio. Radio engineer Lew Deerhold, a resident alien without a job to pay for his adorable little ward Gina's life-saving operation, falls prey to the spy ring, and is swept up in a maelstrom of deceit and danger.
Frank McDonald
Maxwell Shane
Fred Jackman Jr.
Richard Arlen
Lewis J. 'Lee' Deerhold
Wendy Barrie
Ann Patterson
Nils Asther
Dr. Arthur Huneker
Roger Pryor
G.B. Fleming
Abner Biberman
Commander Toyo
Marc Lawrence
Vincent Bela
John Miljan
Mr. Bambridge / Capt. Haigas
Patsy Nash
Tina Deerhold
Ralph Sanford
Agent Freddie Grayson
Jack Carr
Old Mill Gate Guard
Dwight Frye
Haldine (uncredited)
CinemaSerf
The title of this is a little misleading - it hasn't really got anything much to do with submarines. It's more an espionage thriller that sees some Nazi spies pinch a prototype shortwave radio transmitter that enables them to report shipping movements to an Axis submarine which then picks them off. ...
Pine-Thomas Productions
Paramount Pictures