Carl Becker, a young attorney becomes a counter-espionage agent after an agent friend of his is murdered. He doesn't realize that the girl, Paula Fengler, with whom he is deeply in love, is a member of a clever group of German spies led by Dr. Woolford. He learns her true identity, arrests her, and traps the entire gang at the same time. The information he has allows a U.S. patrol boat to sink a German submarine that had been offshore waiting for instructions from the saboteurs.
—Les Adams <longhorn1939@suddenlink.net>