A man, initially blackmailed by the Nazis due to his past, turns the tables by becoming a double agent for the FBI. As he sets up a front in Manhattan, he unwittingly exposes a network of over 30 Nazi spies, leading to their arrest and a significant blow to German intelligence. This bold move highlights the arrogance of the Nazis, who underestimated the loyalty of individuals they believed would serve the Fatherland, ultimately blinding their operations in the U.S. during a critical time in World War II.
