An aging group of outlaws look for one last big score as the "traditional" American West is disappearing around them.
In Arizona in the late 1800s, infamous outlaw Ben Wade and his vicious gang of thieves and murderers have plagued the Southern Railroad. When Wade is captured, Civil War veteran Dan Evans, struggling to survive on his drought-plagued ranch, volunteers to deliver him alive to the "3:10 to Yuma", a train that will take the killer to trial.
Years ago, the young Five Fingers fought for the rural town of Marseilles against brutal police oppression. Now, after fleeing in disgrace, Tau, one of them, returns to Marseilles, seeking only a peaceful life. When he finds the town under new threat, he must reluctantly fight to free it.
A young outlaw gets involved with a gang of crooks. When he tells them he is breaking away, they threaten to pin a false murder charge on him. But he is rescued and reformed by his sister, and an undercover agent for the express company.
A US marshal goes undercover to bust up a bunch of rustlers.
Bank robber Graham Dorsey spends a few hours with beautiful widow Amanda Starbuck, in which time his gang takes part in a disastrous holdup. Learning of his comrades' demise, Dorsey goes on the lam. Believing her short-term lover was killed by the law, Amanda decides to make the most of having had a liaison with the supposedly deceased desperado by writing a book about him. Much to his confusion, the still-living Dorsey watches as his name becomes legendary.
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.
After Cacopoulos manages to save himself from being hung on a false charge, he robs Cat Stevens and Hutch Bessy of a lot of money and steals their horses. This results in a merry chase and Stevens and Bessy become unwilling allies in Cacopoulus' revenge against the people who deserted him and framed him to get their money back.
Lin McAdam rides into town on the trail of Dutch Henry Brown, only to find himself in a shooting competition against him. McAdam wins the prize, a one-in-a-thousand Winchester rifle, but Dutch steals it and leaves town. McAdam follows, intent on settling his old quarrel, while the rifle keeps changing hands and touching a number of lives.
Curley Smith, a lieutenant of the Texas Rangers, gets chased by a band of smugglers after getting caught spying on them and becomes injured. Anita, the daughter of the chief smuggler tends to him and the two of them fall in love. Dean, a member of the renegade, becomes jealous of their romance, and will do whatever he can to get rid of Curley - fair or foul.
After killing Billy the Kid, Sheriff Pat Garrett is relentlessly dogged by members of the Kid's gang.
A man who's a dead ringer for the leader of an outlaw gang kills the gang leader, then takes his place to try to bring the gang to justice.
At the beginning of the 1913 Mexican Revolution, greedy bandit Juan Miranda and idealist John H. Mallory, an Irish Republican Army explosives expert on the lam from the British, fall in with a band of revolutionaries plotting to strike a national bank. When it turns out that the government has been using the bank as a hiding place for illegally detained political prisoners -- who are freed by the blast -- Miranda becomes a revolutionary hero against his will.
Having quit their old gang and gone straight, Bert Allen and Joe Kemp finally own their own ranch after three years, but Joe robs the Riverton bank of the Green River Dam payroll - using Bert's horse, gun and gloves and leaving behind Bert's hat.
The romance of a rancher's niece and a rival rancher's son parallels that of a stallion and a mare.
Danny, a greenhorn from New York comes to the Mexican border in search for his older brother whom he has always looked up to. A Texas Ranger charged with bringing in, El Tigre and his gang of bandits, takes Danny under his wing.
James Kincaid controls the local water supply and plans to do away with the other ranchers. Government agent Sandy Saunders arrives undercover to investigate Kincaid's land swindle scheme, and win the heart of one of his victims, Fay Denton.
Rocky Lane and his horse Black Jack must protect the gold which drought bedeviled ranchers have raised to build a dam from bad guy Smiling Jim.
In the great white north, a trapper searchers for the thief who has been stealing his furs while a local trader seeks to take advantage of the situation.
Rocky and the Land agent riders need to get an important message to the Army post. The message is stolen but Rocky knows one of the four men on the stagecoach has it. When Rocky and the four get trapped in a shack by the outlaw gang, he learns that one of the four is the gang leader. Rocky has to learn his identity and retrieve the message.