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. IMDB
IMDb quotes Evelyn Keyes as saying “I’ve never seen anyone as terrified of directing as Frank McDonald.” Which in some small part may explain the fast-paced action of his movies…that is: get in, direct, and get out!! Submarine Alert (1943) seems no exception. It really speeds along and is a very entertaining home-front-during-war themed film. Also enjoyed Richard Arlen as a headliner! And a nice on-location chase sequence in 1943 downtown Los Angeles.