When a wandering mercenary named Hogan rescues a nun called Sister Sara from the unwanted attentions of a band of rogues on the Mexican plains, he has no idea what he has let himself in for. Their chance encounter results in the blowing up of a train and a French garrison, as well as igniting a spark between them that survives a shocking discovery.
A group of young gunmen, led by Billy the Kid, become deputies to avenge the murder of the rancher who became their benefactor. But when Billy takes their authority too far, they become the hunted.
Three brothers stop off for a night in the town of Tombstone. The next morning they find one of their brothers dead and their cattle stolen. They decide to take revenge on the culprits.
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.
Cheyenne Jones comes to the Blue River Ranch and asks for a job as a cowpuncher. Actually, Jones's real name is Buck McCloud and he's the new owner of the spread, having inherited it when his uncle died a year earlier. He's roaming the range incognito while trying to identify who's behind the cattle rustling that is afflicting his new business.
While searching for his friend's killer, a former outlaw (Tim McCoy) thwarts a robbery and becomes a lawman.
Tim Hart (Tim McCoy), a former Texas Ranger, comes out of retirement to avenge the death of Lightnin' Ed (Frank LaRue), his foster father, who had been sent to Rainbow's End, to investigate a series of train robberies. He senses that George Johnson (Walter McGrail) and his henchman, Speck (Bob Kortman), head the robbery gang, especially after Speck makes an ambush attempt on his life.
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.
A former gunslinger is forced to take up arms again when he and his cattle crew are threatened by a corrupt lawman.
In early 20th-century Montana, Col. William Ludlow lives on a ranch in the wilderness with his sons, Alfred, Tristan, and Samuel. Eventually, the unconventional but close-knit family are bound by loyalty, tested by war, and torn apart by love, as told over the course of several decades in this epic saga.
Marshall "Big Jim" Cole turns in his badge and heads to Wyoming with his family in order to settle on some land left him by a relative. He faces opposition both from a neighbor who wants that land for his own sons, and from a grizzly bear nicknamed "Satan" who keeps killing Cole's livestock.
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.
Will Kane, the sheriff of a small town in New Mexico, learns a notorious outlaw he put in jail has been freed, and will be arriving on the noon train. Knowing the outlaw and his gang are coming to kill him, Kane is determined to stand his ground, so he attempts to gather a posse from among the local townspeople.
The Man With No Name enters the Mexican village of San Miguel in the midst of a power struggle among the three Rojo brothers and sheriff John Baxter. When a regiment of Mexican soldiers bearing gold intended to pay for new weapons is waylaid by the Rojo brothers, the stranger inserts himself into the middle of the long-simmering battle, selling false information to both sides for his own benefit.
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.
Two estranged siblings return home to the sprawling ranch they once knew and loved in order to care for their ailing father.
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.
A gringo gunman and two Mexican families fight a bandit and his gang.
A renowned former army scout is hired by ranchers to hunt down rustlers but finds himself on trial for the murder of a boy when he carries out his job too well. Tom Horn finds that the simple skills he knows are of no help in dealing with the ambitions of ranchers and corrupt officials as progress marches over him and the old west.