Charles Starrett makes his final appearance as The Durango Kid, this time as Steve Reynolds, a postal inspector who has gone underground to catch the bad guys. His longtime sidekick, Smiley Burnette appears as an itinerant optometrist who is hardly in the plot line of the film. Jock Mahoney plays Jack Mahoney, an eastern educated dude who has come back home. The Durango Kid teaches Jack how to draw and fire a six-gun, and the two ultimately work together to bring the outlaws to justice.
Markham and his men have found gold on the Indian reservation and are trying to get rid of them by starting an Indian war. Dressed as Indians they are attacking the soldiers. Steve Holden is the Indian agent sent to prevent a war. After finding proof that white men posing as Indians were responsible, he is able to locate the gang's hideout but quickly becomes a prisoner slated to be killed. - Written by Maurice VanAuken
This time the Durango Kid confronts an expert gambler.
Charles Starrett once more dons the mask of mysterious do-gooder "The Durango Kid" in Columbia's Challenge of the Range. Wandering cowboy Steve Roper (Starrett) is hired by the Farmers Association to stem the activities of a group of gunmen who are driving ranchers off their land. The most likely suspect turns out to be innocent: the real culprits are within the Association itself. With the help of the chief suspect's son, Roper brings the crooks to justice.
Starrett tries to prevent a range war between settlers and the Native Americans. Blue and his fellow scoundrels think they can profit from the bloodshed,but the Durango Kid along with a couple of precocious youngsters put an end to Blue's terrorism.
Federal agent Steve Lawton works undercover with his assistant, Smiley Burnette, to track down an outlaw gang that is raiding government gold shipments bound for Fort Navajo.
The outlaw gangs are robbing the railroads and the Rangers cannot follow them when they move to New Mexico. So Kip decides to take a vacation to New Mexico and, as the Durango Kid, bring Cass and his gang back to justice. But Cass and his gang are killed at the bank in a double cross and Kip must still find the loot. For this, he enlists the help of Tex and Grubstake, although Grubstake does not know it.
In Prairie Roundup, Fred F. Sears' direction brings a welcome jolt of vitality to Columbia's aging "Durango Kid" western series. Once again, Charles Starrett stars as Steve Carson, a lawman who is forced to assume the identity of masked do-gooder Durango. Framed for murder, Carson escapes to locate the real killer. It turns out that he was set up by cattle baron Buck Prescott, who eliminates competition by stealing livestock from other ranchers.
Filmed at the Providencia Ranch (today's Forrest Lawn in Burbank, CA), this typical "Durango Kid" Western featured the Cass County Boys performing "Go West Young Lady" by Sammy Cahn and Saul Chaplin, in addition to series regular Smiley Burnette singing his own "It's My Turn" and "The Yodeler. This time, the Durango Kid (Charles Starrett) is chasing down a gang of outlaws shipping stolen gold in crates marked "ring bolts," ably assisted by Smiley, a treasury agent working undercover as a house painter. Virginia Maxey supplies female interest and little Tommy Ivo, in one of his six appearances in the Durango Kid series, also gets in the way of the action.
The Durango Kid, along with assistance from sidekick Smiley Burnett, investigates a pair of murders that threaten to fuel a range war.
Using marked bills, Steve is looking for the supposedly dead Henry Hardison. Coming to Bonanza Town he gets a job with the town boss Crag Bozeman and gets paid with marked bills. He suspects Hardison is Boseman's boss and he is right as Hardison and his men are now planning to get rid of both him and the Durango kid.
Old Mike Brady built Brady Town and was a leader, but a bullet from an unknown assailant has ended his life. When the will is read, it leaves the bulk of the property to Kirk, the gambling son of Mike. This upsets Sam, the hard working son, but not gambler Full House who always beats Kirk at cards. But even the Sheriff is suspicious of the will, but he needs proof and the Durango Kid will find the proof.
Stage line owner Brent has his men robbing Halliday stages and when his manager Waring learns of it, Brent has him killed. Jeff Waring arrives and takes his uncle's job. He soon learns what's happening and the Durango Kid goes into action. This keeps Halliday going and gives them a chance to get the mail contract by winning the stagecoach race.
Steve Holden, a secret service agent, is suspended when his boss becomes suspicious of his activities as The Durango Kid. Can Steve prove his innocence?
When Sheriff Jeff Connor of Powder River cannot stop the crime wave, his young son, Larry, writes to the Durango Kid for aid. Taggart, the saloon owner, is the secret head of the outlaws, while Connor's brother Bill is in cahoots with him. Steve Randall, the Durango Kid, and his pal, Smiley Butterbean, arrive in time to stop a stagecoach holdup, and Steve is made a deputy sheriff. Taggart has one of his men, Slade, pose as the Durango Kid and while he is speaking to the townspeople, the rest of the outlaw gang pillages the town, and this somewhat damages the Durango Kid in the eyes of Larry and his sister Doris. Steve suggests that Sheriff Connor visit the government about a railroad project, and Taggart instructs Slade and the gang leader to kill Connor on his trip back.
The cattle herds of some Arizona ranchers are being stampeded and stolen, so the Arizona Stockmen's Syndicate sends ace investigator Steve Reynolds in to find out who is responsible. Steve poses as a vicious gunslinger named Buck McCloud to work his way into the gang, and then becomes the Durango Kid to disrupt the activities he learns about. Jud Temple is the loyal fiancée of town banker Grat Hanlon who turns out to be the brain-trust behind the gang.
Cimarron has found a lost treasure and the outlaw gang knows about it. They have made him a prisoner and are trying to get the location from him. However, he has sent for his friend Steve Reynolds and the Durango Kid will soon be on the job.
Steve Driscoll arrives to help a friend who is trying to bring in an oil well. He finds that the well has been blown up and the workers have quit. He gets the workers back on the job and orders a new drill bit . When the drill bit is stolen he organizes the townspeople to invest in the well. But when the money is collected, a fake Durango Kid shows up to take it and flee
Government Agent Steve leases land to Masters so he can bring in horses for the Army. Henley has obtained a forged lease for the same land and Steve is unable to prove it's a fake. While Steve checks with Washington, Henley plans to roundup and ship the horses. Masters also intends to roundup the horses and he has the Durango Kid on his side in the battle with Henley.
Steve arrives looking for the person printing counterfeit bonds. He finds his man in Pop Ryland who has two sons and a stepson. The stepson doesn't want to be an outlaw like the other sons and helps Steve out by posing as the Durango Kid when needed and then leading him to the evidence he is looking for.