Great story shows how the FBI cracked a Nazi agent spy ring with the aid of a hidden camera.
Titles read: "AMERICA'S BLACKEST MARKET - EXCLUSIVE PICTURES".
New York (?), United States of America.
Chief of the FBI (Federal Bureau of Investigation) J Edgar Hoover is seen sitting at his desk, looking through papers and talking on the telephone. Commentator talks of the United States Department of Justice scoring a crushing victory against Nazi plots to steal military secrets and sabotage the nation's war industry - "these agents of Adolf Hitler have now had their poisoned fangs extracted".
Various shots of some of the 33 Nazi agents arrested in the spy roundup arriving at the court; most cover their faces. We see the charged men seated in court before Commissioner Martin Epstein. Frederick Duquesue, one of the most dangerous of the spies stands up.
Brief shot of sign reading 'Times Square Broadway' and 'W 42 St' on New York street. Nice C/U of a man using a 16 mm cine-camera. Various sequences from secretly filmed footage that caught the spy-ring. One after another the spies enter a room and pass over their information and receive their pay. William Sebold, a double agent who is pretending to work for the Gestapo while working for the FBI, sits with his back to camera. He is the man who receives the information and pays out. The men who come in are Erich Strunk, Leo Waalen, Franz Stigler and then Frederick Duquesue.
Various shots of the spies getting out of police van, handcuffed together in pairs.