Submarine Alert

Submarine Alert 1943 is an American film directed by Frank McDonald, produced by PineThomas Productions and released by Paramount Pictures. The film was the last in a series of three PineThomas adventure films that included Forced Landing 1941 and Flying Blind 1941. The film stars Richard Arlen, Wendy Barrie, Nils Asther, Roger Pryor, Marc Lawrence and Ralph Sanford.

Engineer Lewis J. Lew Deerhold Richard Arlen thinks he lost his job because he is a Canadian citizen. Lew looks after his niece Tina Patsy Nash, a war orphan requiring a brain operation. Needing money, he applies for work at a radio repair shop, where he meets Ann Patterson Wendy Barrie, the victim of a purse snatching. Lew recovers her purse and asks Ann out on a date.After coming back to his apartment, his new boss is there with Dr. Arthur Huneker Nils Asther and his assistant Vincent Bela Marc Lawrence. Lew is offered a job by Huneker, a Nazi spy commander who needs someone to repair a topsecret stolen radio transmitter. Ann is an FBI agent who has been assigned to follow Lew. She finds blueprints to the transmitter in Lews possession. When FBI agent Freddie Grayson Ralph Sanford searches Lews apartment, he is shot but is able to tell Lew that the doctor has the stolen transmitter and shot him. ........

Source: Wikipedia