On the French coast, unlucky Marie Galante is abducted and forced to board an American cargo ship bound for the Panama Canal. When an escape attempt leaves Marie high and dry in the Yucatan, she takes work as a nightclub singer to earn her safe passage to the Canal region. But Marie faces bigger problems when she gets mixed up in a destructive plot against the U.S. Naval fleet, and so she accepts the kindly assistance of secret agent Dr. Crawbett.
Reb Russell (Reb Russell), undercover agent for the Cattleman's Protective Association, goes into the stronghold hideout of rustler chief Bull Thompson (Fred Kohler) posing as an outlaw. He falls in love with Marion, Bull's step-daughter. Juan (Dick Botiller), a gang member once jailed by Reb, reveals Reb's true identity, but he will be given his and Marion's freedom to leavy the valley if he can beat Thompson in a fight. He does, but Butch Greer (Jack Rockwell), a gang member trying to take over from Thompson leads the gang after the pair, after first revealing to Thompson that Reb is Thompson's own son, whom he last saw as a baby when Thompson, then known as Big Bill Russell,was forced to flee the law. Thompson and loyal gang member Blackie (Edmund Cobb), who was once helped by Reb, go after the gang in an effort to help Reb and Marion escape.
Hot jewels from London make their way to New York, where they are stolen by racketeer Ed Dexter, who hides them with the help of his vivacious girlfriend, Vivian Palmer. Federal agent Ross McBride goes undercover to infiltrate the gang and, suspecting Vivian can lead him to the jewels, comes to her aid when she is chased by a rival gang. The two flee to the Midwest with both gangs in pursuit, but Vivian is not as gullible as Ross thinks.
An operative from the Wells Fargo company goes undercover to trap a crooked sheriff and his equally nefarious hirelings in this standard B-Western from A.W. Hackel's low-budget Supreme Pictures Corp.
President McKinley asks Lt. Richard L. Perry to go underground to identify some obviously very well briefed Mid-Western bank robbers based in Saint Paul, Minnesota.
British agent working in Russia is forced to remain longer than planned once the revolution begins. After being released from prison in Siberia he poses as a Russian Commissar. Because of his position among the revolutionaries, he is able to rescue a Russian countess from the Bolsheviks.
A federal agent poses as a criminal to infiltrate a gang of parolees seeking vengeance on the lawmen who jailed them.
Chasing jewel thieves, Captain Carson and Magpie head for the border where Carson, posing as a Chinaman, opens a store that buys jewelry. To flush the thieves into the open, Carson wins all their money at poker. They agree to sell him the jewels but plan to kill him and keep both the jewels and the money.
Brass Bancroft and his sidekick Gabby Watters are recruited onto the secret service and go undercover to crack a ruthless gang that smuggles illegal aliens.
In coastal Cornwall, England, during the early 19th Century, a young woman who's come there to visit her aunt, discovers that she's married an innkeeper who's a member of a gang of criminals who arrange shipwrecking and murder for profit.
An undercover agent wrongly punished for murder is paroled to a remote tropical island with a diamond mine slave labor run by a sadistic foreigner.
Charters and Caldicott are touring the Middle East. After visiting Saudi Arabia they find themselves in Bagdad where they are mistaken by a group of German spies for the messengers who are to carry a song record by beautiful singer La Palermo which contains secret instructions of the German Intelligence. Realizing their error, the German spies follow Charters and Caldicott to Istanbul and Budapest, trying to eliminate them and retrieve the record.
A blackmail mob is waiting for you to go out with one of these girls.
A gang of thieves has jeopardized the city and even the police, whose chief urges their forces to captured the band within 48 hours. Meanwhile, band members meet in a cafe run by a widow and her daughter and her suitor, Cantinflas, who maintains a scuffle with the robbers running all at the station. Since then, Cantinflas become a member of the police force for special missions.
British Captain Terence Stevenson (Robert Donat) accepts an assignment even more dangerous than his everyday job of defusing unexploded bombs. Fluent in Romanian and German and having studied chemical engineering, he is parachuted into Romania to assume the identity of Captain Jan Tartu, a member of the fascist Iron Guard. He makes his way to Czechoslovakia to steal the formula of a new Nazi poison gas and sabotage the factory where it is being manufactured.
Barstow and Stevens are forcing the local printer to print fake silver certificates which they then sell. Treasury Agents Chick Weaver and Throckmorton Snodgrass arrive working under cover. But when Chick's true identity as an Agent is revealed, Barstow sends his henchmen to finish him off.
A psychopathic criminal with a mother complex makes a daring break from prison and then leads his old gang in a chemical plant payroll heist. After the heist, events take a crazy turn.
The French Revolution, 1794. The Marquis de Lafayette asks Charles D'Aubigny to infiltrate the Jacobin Party to overthrow Maximilian Robespierre, who, after gaining supreme power and establishing a reign of terror ruled by death, now intends to become the dictator of France.
When two outlaw gangs team up to rob gold shipments, the U.s. Army sends their ace-troubleshooter, Dan Parker, to the area. Sam Casey, the mystery-man behind the gangs, kills Parker's father, and this induces his sweetheart, Rita Starr, to side with the law-and-order faction. An attempt by Casey to kill Rita is foiled by Parker, which leads to a widespread gun-battle. Written by Les Adams
Advertising man Roger Thornhill is mistaken for a spy, triggering a deadly cross-country chase.