A gang of bandits takes control of Tucson in preparation for the arrival of a consignment of gold, with only a band of voluntary soldiers trying to outwit them and save the town.
Stodge City is in the grip of the Rumpo Kid and his gang. Mistaken identity again takes a hand as a 'sanitary engineer' named Marshal P. Knutt is mistaken for a law marshal. Being the conscientious sort, Marshal tries to help the town get rid of Rumpo, and a showdown is inevitable. Marshal has two aids—revenge-seeking Annie Oakley and his sanitary expertise.
The coming of the railroad to Cedar City spells the end of the stagecoach as the government gives the mail contract to the fastest means of delivery. McCord loses the stagecoach line gambling with the new buyer, but has enough hidden money to buy a ranch and some cattle. To make more money, he starts a gang to rob the railroad, express offices and steal cattle. But the railroads send out special agent Cameron to end his reign of violence.
Bandit Cheyenne Harry reforms because of the faith placed in him by Molly Young and her father. Soon, however, Harry is lured from the straight and narrow when he meets his old friend Ben Kent and consents to participate in Kent's plan of robbing a stagecoach.
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.
The conflict between a railroader and a stage line owner is being aggravated by bad guys who are sabotaging both sides. Roy and Gabby mediate the conflict and expose the bad guys.
A small-town sheriff in the American West enlists the help of a disabled man, a drunk, and a young gunfighter in his efforts to hold in jail the brother of the local bad guy.
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.
A young woman arrives in the western town of Headstone and helps the locals outsmart a gang of outlaws.
A group of people traveling on a stagecoach find their journey complicated by the threat of Geronimo, and learn something about each other in the process.
An aging group of outlaws look for one last big score as the "traditional" American West is disappearing around them.