U.S. Marshal Johnny Mack Brown once again goes undercover in this Nevada Mckenzie series entry from Great Westerns Prod./Monogram. Masquerading as a parson and a drifter, Sandy Hopkins (Raymond Hatton) and Nevada Jack McKenzie (Mack Brown) come to the aid of the beleaguered residents of Goldville, a small ranching community being terrorized by greedy saloon keeper Ace Benton (Kenneth MacDonald) and his gang of cutthroats. Unbeknownst to the citizenry, the railroad is planning to build tracks through town and Benton is attempting to secure the land by scaring off the settlers.
Questions arise when Senator Stoddard attends the funeral of a local man named Tom Doniphon in a small Western town. Flashing back, we learn Doniphon saved Stoddard, then a lawyer, when he was roughed up by a crew of outlaws terrorizing the town, led by Liberty Valance. As the territory's safety hung in the balance, Doniphon and Stoddard, two of the only people standing up to him, proved to be very important, but different, foes to Valance.
A town—where everyone seems to be named Johnson—stands in the way of the railroad. In order to grab their land, robber baron Hedley Lamarr sends his henchmen to make life in the town unbearable. After the sheriff is killed, the town demands a new sheriff from the Governor, so Hedley convinces him to send the town the first black sheriff in the west.
An old Chinese man rides into the town of Abalone, Arizona and changes it forever, as the citizens see themselves reflected in the mirror of Lao's mysterious circus of mythical beasts.
Dan Evans, a small time farmer, is hired to escort Ben Wade, a dangerous outlaw, to Yuma. As Evans and Wade wait for the 3:10 train to Yuma, Wade's gang is racing to free him.
Tex and his sidekicks arrive to help out his friend Jeffers, a railroad owner, only to find that he has been killed. They quickly run into trouble with an outlaw gang in their attempt to find the mysterious ghost train that supposedly runs on Jeffer's line.
Female outlaw helps lawmen trap railroad bandits.
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.
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.
When Rocklin arrives in a western town he finds that the rancher who hired him as a foreman has been murdered. He is out to solve the murder and thwart the scheming to take the ranch from its rightful owner.
In this western, two cowboys ride to the rescue of ranchers who are fighting to keep a land-grabber from taking their land and selling it to the railroad
Just before the Civil War (but after the South has seceded), Southern saboteurs try to prevent railroad construction from crossing Kansas to the frontier; army captain Nelson is sent out to oppose them. As the tracks push westward, Nelson must contend with increasingly violent sabotage, while trying to romance the foreman's pretty daughter Barbara.
A Mexican bandit is about to be executed in the United States, so his brother takes over a train and holds the passengers as hostages unless his brother is released. Now both the Americans and Mexicans are baffled as to what to do. One of the passengers — who wrote the letter for their captor — has a suggestion: call mercenaries Hank Brackett and Johnny Reech. They do, and as expected they do come up with a plan, but the president of the railroad is not sure if it will work.
Union officer Kerry Bradford escapes from a Confederate prison and races to intercept $5 million in gold destined for Confederate coffers. A Confederate sympathizer and a Mexican bandit, each with their own stake in the loot, stand in his way.
Bounty hunters seek shelter from a raging blizzard and get caught up in a plot of betrayal and deception.
Two investigators for a stagecoach company are assigned to find out why the company's stages keep being ambushed. They discover that the culprits are white men disguised as Indians, and they set out to discover who is behind the plot.
Jesse W. Haywood (Don Knotts) graduates from dental school in Philadelphia in 1870 and goes west to become a frontier dentist. Penelope "Bad Penny" Cushing (Barbara Rhoades) is offered a pardon if she will track down a ring of gun smugglers. She tricks Haywood into a sham marriage as a disguise. Haywood inadvertently becomes the legendary "Doc the Haywood" after he guns down "Arnold the Kid".
Lash and Fuzzy sent to help John Watson with his stage line arrive to find him murdered. Recognizing the outlaws they trail them to their leader Baxter. But before Baxter can tell who the big boss is he is shot. After getting the stage through to assure the mail contract, Lash now realizes who the boss is.
In order to obtain a stage coach mail contract, a new road must be built. A gang of outlaws try to prevent the building of the road.
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.