Stars Warren William as Michael Lanyard, a onetime criminal known as the Lone Wolf. He is reformed for the sake of his daughter (Virginia Weidler), but a gang of foreign spies abducts and forces him to steal the blueprints for a secret anti-aircraft gun. Ever the ladies' man, Lanyard has two lovelies to contend with here: dizzy heiress Ida Lupino and seductive spy Rita Hayworth.
