The hero, Texas Ranger Larry Whalen (Charles Starrett), is on the trail of a mysterious outlaw leader.
When Colt kills the men that murdered his father, he escapes his pursuers and joins Wolf and his outlaw gang. After two years Wolf breaks up the gang, deeds his ranch to Colt, and turns himself in. Now an honest rancher, things are going fine for Colt until Wolf's old gang shows up under a new leader. Colt get the Governor to release Wolf claiming the two of them can bring in the gang.
Wealthy rancher Bick Benedict and dirt-poor cowboy Jett Rink both woo Leslie Lynnton, a beautiful young woman from Maryland who is new to Texas. She marries Benedict, but she is shocked by the racial bigotry of the White Texans against the local people of Mexican descent. Rink discovers oil on a small plot of land, and while he uses his vast, new wealth to buy all the land surrounding the Benedict ranch, the Benedict's disagreement over prejudice fuels conflict that runs across generations.
Jim Killian arrives in a small Arizona town hoping to establish a peaceful life as the local preacher, but he soon finds himself in the middle of a feud between sheep ranchers and cattlemen. Leloopa, a young Native American woman, pleads for Killian's help after her shepherd father is hung by Coke Beck, the vicious son of the head cattle rancher. Killian must weigh his actions carefully lest he perpetuate the cycle of retribution and revenge.
Banker Mason is after the ranchers land so he can resell it to the railroad for a profit. He has the railroad agent killed and replaces him with his stooge who then offers even less than Mason. But Rocky eventually suspects Mason and when Bill Anderson informs him the agent is a fake, they head out after Mason
Outlaws plan a robbery to take place during a championship prizefight in Carson City, Nevada.
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.
Rancher Reynolds has fired his men and hired killers and is now using a crooked land deal to put the other ranchers off their land. Calico finds the reason why when he runs into his old nemesis Porter.
As executor of the owner's will, singing ranch foreman Gene must see that the daughter/heiress doesn't marry without his approval.
Gene takes care of three tough kids sent west from Chicago after their father died and left them a cattle ranch. They help him catch a bunch of rustlers.
Narrowly escaping death, outlaw Johnny Madrid goes on the run with the hangman's sensuous daughter Esmeralda by his side.
Sandy Doyle, gambler and political chief of a small border town, seeks to gain control of the Bar-X Ranch, owned by Rufe Rickson, to further some undercover activities of his own. He counts on Rickson's inability to stay away from gambling as the means to his ultimate success. Government investigator Oliver Shea and his assistant, Dan Haggerty, start a fight in Doyle's place when they see Rickson being cheated and are invited to the Bar-X where Oliver and Helen Rickson, Rufe's daughter, discover interest in each other and Dan finds himself pursued by Bell, the ranch cook. Sheriff Larson brings the prize money for the $5,000 race of the Rodeo Association, and that night it is stolen.
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.
Three of the original five "young guns" — Billy the Kid, Jose Chavez y Chavez, and Doc Scurlock — return in Young Guns, Part 2, which is the story of Billy the Kid and his race to safety in Old Mexico while being trailed by a group of government agents led by Pat Garrett.
The brother (House Peters Jr.) of rancher Bill Martin (Bill Elliott) is killed in a stampede started by cattleman. Bill returns to the Fargo country to take his brother's place and is welcomed by law-abiding cattleman MacKenzie (Jack Ingram)) and his daughter Kathy (Phyllis Coates). The leader of the ruthless cattle interests are townsman Austin (Arthur Space) and his henchmen Red (Myron Healey), Link (Robert J. Wilke) and Albord (Terry Frost). Bill has the idea of putting up barbed wire to keep the herds from been driven over the land cultivated by the farmers. He, aided by Tad Sloan (Fuzzy Knight), produces the wire by make-shift methods, but it proves effective. The cattleman charge in court that the wire is dangerous to their herds but lose the case. Austin orders his men to seize Bill, bale him in strands of the wire, and throw him on the stage of the town hall during a fall festival. Bill doesn't take kindly to this and it precipitates open war.
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.
Cole Thornton, a gunfighter for hire, joins forces with an old friend, Sheriff J.P. Harrah. Together with a fighter and a gambler, they help a rancher and his family fight a rival rancher that is trying to steal their water.
When Tex is brought in to fight in a range war between the cowmen and the nesters, he meets his old outlaw boss Lassiter. He learns Lassiter is behind the feud when Lassiter asks him to join up with his gang. Tex refuses and instead sets out to stop the feud but no one will believe him that Lassiter is responsible.
Dyer is buying ranches and then retrieving his check by having his gang kill the owner. Bob Worth arrives just as Buck Morton is killed and gets blamed for the murder. Fleeing from the Sheriff, Bob teams up with the Mexican outlaw Golinda. Having seen Dyer pay off his men, he has a plan to trap him and Golinda is just the man he needs to make it work.
Renegades trying to get the army to abandon their fort get the Indians addicted to whiskey, then convince them to attack and drive out the soldiers.