Riders of the Lone Star

Before the U.S. Civil War rebel leader Luke Darcy sees himself as leader of a new independent Republic of Kansas but the military governor sends an ex-raider to capture Darcy.

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.

While the Civil War rages on between the Union and the Confederacy, three men – a quiet loner, a ruthless hitman, and a Mexican bandit – comb the American Southwest in search of a strongbox containing $200,000 in stolen gold.

An outlaw named Duane ( Tom Mix ), captured by the Texas Rangers, is promised a pardon if he rounds up a gang of cattle thieves. The man he suspects as the leader is revealed to be the father of Duane's sweetheart, Helen ( Billie Dove ). Duane captures the gang, gets a pardon for Helen's father, and marries Helen.

Lash goes south of the border looking for a counterfeiter, a kidnapped engraver and his daughter, and the mysterious Frontier Phantom, while Fuzzy St. John studies hypnotism.

Questions arise when Senator Stoddard (James Stewart) attends the funeral of a local man named Tom Doniphon (John Wayne) 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 (Lee Marvin). 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.

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.

Treasury Department Steve Waring, and also, unknown to others, the Durango Kid, comes to Sunset Pass in search of $1000,000 in gold coins, stolen from the government by the late Forrest Brent. He is aided by Smiley Burnette, the local deputy sheriff. Later, Paula Thorpe, Brent's daughter from his first marriage, arrives with her lawyer sweetheart Frank Raeburn, with intentions of proving her father's estate belongs to her and not to Mrs. Brent, his wife of record when he died. The widow Brent has no intentions of giving up one single cent.

When Steve Downey arrives to reopen his brother-in-law's gold mine, he finds a war between the ranchers and the miners. Ashton has had the water poisoned killing cattle. When Ashton's men find Steve's hat, they kill Tom Tavish and frame Steve for the murder. Escaping jail the Durango Kid goes into action.

The Durango Kid rides again in Columbia's Landrush. As ever, the masked do-gooder, alias Steve Harmon, is played by Charles Starrett. Bringing up the rear in every sense of the word is Harmon's comical sidekick Smiley Burnette. In this outing, Harmon dons his Durango garb to rescue a group of homesteaders from scurrilous villains. Musical relief is provided by Ozie Waters and his Colorado Rangers.

Arriving to become the new Deputy, Steve Gordon takes over as Sheriff instead when he finds the Sheriff has been killed. He doesn't last long and is fired for incompetence. But he realizes Brady is pulling off a swindle. Having found the proper soil, Brady has salted it with cheap diamonds, gotten Smiley to accidently find them, and is now taking money from eager investors and planning to flee with it.