In late 1890s Wyoming, Butch Cassidy is the affable, clever and talkative leader of the outlaw Hole in the Wall Gang. His closest companion is the laconic dead-shot Sundance Kid. As the west rapidly becomes civilized, the law finally catches up to Butch, Sundance and their gang. Chased doggedly by a special posse, the two decide to make their way to South America in hopes of evading their pursuers once and for all.

After the train station clerk is assaulted and left bound and gagged, then the departing train and its passengers robbed, a posse goes in hot pursuit of the fleeing bandits.

a couple of young vigilantes on a mission to stop a gang of train robbers.

In 1870, Japanese ambassador Sakaguchi and his entourage travel by train to Washington to deliver a valuable sword to the President of the United States, a gift from the Emperor of Japan. On board the same train are two robbers, Link and Gauche, ready to make their move…

Old West highwayman Bill Miner, known to Pinkertons as "The Gentleman Bandit," is released in 1901 after 33 years in prison. A genial and charming old man, he re-enters a world unfamiliar to him, and returns to the only thing that gives him purpose — robbery.

After escaping from jail, outlaw Wes McQueen is convinced by his old partner in crime to do one last heist.

Heading east to Fort Worth to hire a schoolteacher for his frontier town home, Link Jones is stranded with singer Billie Ellis and gambler Sam Beasley when their train is held up. For shelter, Jones leads them to his nearby former home, where he was brought up an outlaw. Finding the gang still living in the shack, Jones pretends to be ready to return to a life crime.

In this film's version of the story, four of the Reno Brothers are corrupt robbers and killers while a fifth, Clint is a respected Indiana farmer. A sister, Laura, who has inherited the family home, serves the outlaw brothers as a housekeeper and cook. One brother is killed when they go after a bank, the men of the town appear to have been waiting for them…

On the run from her violent husband, Catherine Crocker witnesses a train robbery and is taken prisoner by a frontier outlaw gang, led by a bandit who’s hiding a secret of his own.

Cullen has hired Tom to try and stop the robberies on his railroad. Knowing Cullen's secretary Holt is tipping off the gang, Tom works undercover by posing as a highwayman. To help him bring in the gang he enlists the help of the hobo DeLuxe Harry.

In 1912, during the Mexican Revolution, the border between Texas and Mexico is on flames due to savage raids by Mexican bandits who call themselves freedom fighters, so the US government entrusts to General Pershing the capture of General Héctor Córdoba, the most notorious among them.

Ready to quit their life of crime, the three "most-wanted" outlaws in the West---Butch Cassidy, Sundance Kid and Bill Carver ---perform their final job by robbing and stealing a train and fleeing across the border. In a South American town they begin their life of respectability by purchasing a ranch and depositing their stolen fortune in the local bank, and throwing a big fiesta to entertain the locals, including Colonel Aguilar and his beautiful daughter Rita.

Two brothers, Monty and Ted, will inherit $300,000 if they manage to live together for six months.

Mike Sturges and his younger brother, Roy, are sentenced to Yuma Penitentiary on a trumped-up train robbery charge. Both endure cruel treatment before Mike escapes to extract revenge on their enemies.

The Three Mesquiteers are forced to track down a train robbery ring after some of the gang hijack their truck for a getaway and the police conclude they are part of the gang, an identification which is just fine with the gang's nameless chief.

The story of how Bill Black after a train robbery outwits his pursuers and the sheriff.

After a particularly brutal heist, Alex is disturbed by the actions she and her fellow gang members have just committed. Terror sinks in as she looks around the campfire and realizes that she's the only one affected by their grizzly deeds.

Rex, Slim and the boys are fired by a wealthy rancher but decide to help him out when his daughter intends on marrying a shifty, gold-digging actor. Meanwhile, the rancher's foreman executes plans for a train robbery.

A widowed bandit undergoes a vengeful train robbery. However, things begin to go off the rails when other bandits arrive to rob the same train. Complications somehow further whenever the train never arrives.

After a handful of non-formula westerns, Charles Starrett returned to the mixture as before in Thundering Frontier. Starrett plays Jim Fillmore, kind to old ladies, small animals and heroine Norma Belknap (Iris Meredith). In contrast, the villains are kind to no one, least of all struggling building contractor Square Deal Scottie (Alex Callam), whose projects are continually targeted for demolition and his payroll is forever being stolen at gunpoint. A good 25 percent of the film's running time is given over to Bob Nolan and the Sons of the Pioneers, whose C&W croonings are pleasant but a bit much. One of the film's few surprises is that Starrett's perennial screen sparring partner Dick Curtis isn't one of the bad guys.