Calling All Agents! When Nazi spies steal a shortwave transmitter prototype, the Government has the West Coast's top radio engineers fired and trailed to see if the Nazis recruit them to work on this valuable model. Director Frank McDonald (My Pal Trigger) helms a solid cast that includes Richard Arlen, Wendy Barrie, and Nils Asther, with music by two time Oscar nominee Freddie Rich (Stage Door Canteen, Jack London). STAND BY FOR THRILLS! ADVENTURE! ACTION!