James 'Brick' Davis (James Cagney) è stato raccolto dai bassifondi dal boss McKay (William Harrigan) che lo ha fatto studiare e diventare avvocato. Quando però un suo amico, agente federale, viene ucciso mentre dà la caccia ad un bandito, Davis decide di arruolarsi nella polizia federale, combattendo i capi delle varie bande.
FBI agent Mac Richards takes his girlfriend, Helen Phillips, to a world championship boxing match only to learn that the event has been canceled because the titleholder has been kidnapped. Mac is entrusted with the ransom money, but the kidnappers discover that his fellow agents have surrounded the train station locker where the money was to be dropped and order the champ's manager to have the money delivered by an usher to a different location. With Helen disguised as the usher and Mac driving a cab, the pair set off to deliver the money. The gang isn't taking any chances, though - they waylay the cab and take both the ransom money and Helen to their hideout. Now Mac and his fellow agents must rescue both the champ and his sweetheart before they come to harm.
Jim 'Socker' Conway, former boxer and FBI hero, is maneuvered for political reasons into a do-nothing job in the district attorney's office. Meanwhile, he meets wild debutante Letty Lane, girlfriend of mob mouthpiece Steve Lawrence; and Letty's much nicer sister Susan. Now the slot machine gang brutally beats Jim's friends Franz and Otto. And Jim finds a way to use his nominal position to go into the racket- busting business. But his success puts Letty in deadly peril...
During a stick-up, a woman is excited by the criminal and joins him on his crime spree.
Prima che gli Stati Uniti entrino in guerra, le spie naziste cercano di rubare i segreti militari americani. Tra coloro addetti allo spionaggio vi è Kurt Schneider, cacciato con disonore dall'esercito statunitense e lasciatosi influenzare facilmente dal dottore tedesco Karl Kassel, a capo della rete spionistica. Quando il contatto di Schneider viene arrestato in Scozia, gli Usa chiedono all'Fbi di intervenire e del caso è incaricato l'agente Edward Renard.
Dr. Bartley Morgan covers up his profitable illegalities with the respectable veneer of a posh, highly profitable private practice, he runs with his nurse Margaret Hopkins. The FBI agent Robert Anders has to catch on to Morgan's illicit activities.
Before he was killed, Martin hid a half million dollars worth of bonds on his ranch. Brainard, who killed him, Inspector Carson posing as Sam Brown, and Martin's niece Margaret all want the ranch, and it's being sold at auction.
G-Man Bill Collins swings into action when a crooked sweepstakes racket begins insinuating itself upon the honest citizenry of the US. The crooks have flooded the market with counterfeit lottery tickets, reducing many an unwary speculator to poverty.
This expose of the U.S. parole system, as seen through the eyes of FBI Director J. Edgar Hoover, takes dead aim on lawyers who manipulate the justice system in order to get undeserving convicts parole from prisons. The point is made when FBI agents are assigned to track down "Big Boy" Bradmore, who after getting an undeserved parole, via the efforts of a shyster lawyer, promptly murders an FBI agent.
Ma Webster (Blanche Yurka) and her boys rob a bank on Christmas Eve; G-men stop them with Tommy guns.
A gang of urban street kids and a club of suburban would-be federal agents, at first rivals, join forces to rescue the father of one of the kids, the inventor of a super-explosive and its remote detonator, from the clutches of a band of foreign subversives call the "Flaming Torch Gang". A 12-episode movie serial with the chapters: •1. Enemies Within •2. The Blast of Doom •3. Human Dynamite •4. Blazing Danger •5. Trapped By Traitors •6. Traitors' Treachery •7. Flaming Death •8. Hurled Through Space •9. The Plunge of Peril •10.The Toll of Treason •11.Descending Doom •12.The Power of Patriotism
FBI agents Allan Harper and Tommy Baker are in charge of a group of subversives, spies and saboteurs that the US government is deporting to foreign countries aboard a ship. The deportees attempt to take over the ship.
FBI agent Bob Grayson works in collaboration with Max, a British agent posing as a fugitive German aviator. Meanwhile, fearless girl reporter Dallas Dayle is assigned by her editor to track down the enemy aviator and get an exclusive story. When she catches up with Grayson and Max, Dallas is under the impression that Grayson is a rival reporter and Max is the genuine fugitive.
Some dastardly criminals have stolen some top secret plans and tattoo them on the back of a woman so she can sell them to the highest bidder in Lisbon. This woman plans to take the place of a 'Sidney Royce', a legitimate traveler going to Lisbon as a reporter. Crossed signals allows the real Sidney to reach Portugal first, where she is pursued by those trying to obtain the plans and US government agents trying to prevent the sale.
A group of street kids battle a terrorist gang led by a Japanese spy.
Two FBI agents are sent to investigate sabotage at a lumber camp.
The centrepiece of this March of Time film is the dramatised sequence showing the FBI infiltration of a group of American Nazis, whose espionage and sabotage operations are run from the backroom of a local restaurant. The film’s message - that the FBI is more than a match for German spies - is reinforced by the focus on new techniques such as covert filming and forensic evidence analysis, helped by an army of administrative staff working alongside the Bureau’s 4,500 special agents.
Alla vigilia dell'ingresso degli Stati Uniti nella seconda guerra mondiale, gli agenti dell'FBI scoprono una cellula nazista che cerca di acquisire informazioni sul cosiddetto "Process 97", una parte fondamentale dello sviluppo della bomba atomica. L'ispettore George Briggs e la sua squadra devono scoprire come vengono divulgate le informazioni e l'identità di Mr. Christopher, nome in codice assegnato al capo della cellula nazista. A questo scopo cooptano lo studente universitario tedesco-americano William Dietrich, che anche i nazisti hanno cercato di reclutare e che si trova ad agire come doppiogiochista al soldo degli americani. I contatti tedeschi di Dietrich, guidati da Elsa Gebhardt, non si fidano completamente di lui e arrivano così vicini a scoprire il suo doppio gioco, mentre Briggs si avvicina all'identità di Mr. Christopher. Dietrich riuscirà infine a passare ai federali le informazioni segrete, permettendo di smantellare la rete di spie.
Figlia di una spia tedesca condannata alla fine della guerra, Elena accetta di lavorare con Devlin, agente americano che deve indagare sulle attività brasiliane di un gruppo di nazisti fuoriusciti. Elena si innamora di Devlin e rimane sconvolta quando l'uomo accetta che lei sposi Sebastian, il capo dei nazisti. Un uomo "vende" la sua donna per il bene del Paese; lei si sacrifica per espiare le colpe del padre.
A security leak is found at a Southern California atomic plant. The authorities stand in fear that the information leaked would go to a hostile nation. To investigate the case more efficiently, Dan O'Hara, an FBI agent, and Philip Grayson, a Scotland Yard sleuth, join forces. Will they manage to stop the spy ring from achieving their aim?