Pamela Mitchell, a renowned sport pilot, secretly uses intel from her boyfriend to aid enemy submarines in sinking American vessels. However, her deceit is uncovered by a vigilant newspaper columnist, Ward Prescott, and her sister, Sue Mitchell, who together expose Pam's treachery and bring down a gang of Nazi saboteurs.
Spy Ship
A radio reporter uncovers a possible threat to national security when he suspects a commentator at his station of secretly transmitting vital shipping information to enemy agents. He enlists the help of the commentator's sister to root out the spy and her Nazi collaborators.