In this thrilling movie, a stolen prototype of a shortwave transmitter is used by German spies to broadcast sensitive shipping information to a Japanese submarine. To catch the spy ring, the US government secretly follows and monitors the top radio engineers on the West Coast, including Lew Deerhold, a struggling engineer who desperately needs a job to pay for his young ward's life-saving medical treatment.
Submarine Alert
Nazi spies gain access to sensitive shipping information when a shortwave transmitter prototype is stolen, putting national security at risk. The government responds by monitoring and dismissing skilled radio engineers on the West Coast, setting the stage for a high-stakes cat-and-mouse game.
