The Jack Bull tells the story of Myrl Redding, a Wyoming horse trader who clashes with Henry Ballard, a fellow rancher, after Ballard abuses two of Myrl's horses and their Crow Indian caretaker, Billy. When Judge Wilkins throws out Myrl's complaint, the war he wages to force Ballard to nurse the emaciated animals back to health escalates into a vigilante manhunt, murder and the possible defeat of Wyoming's bid for statehood.
Roy returns home to fine a range feud between the cattlemen and the sheepmen. When his friend is killed he finds the rifle had a defective pin. He learns the rifle belongs to a ranch hand named Barker and that a third party has caused the feud. When he captures outlaws trying to blow up a dam, he claims Barker was the killer. But Barker has switched rifles and the outlaws now accuse Roy and Roy finds himself in trouble.
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.
Harvard graduate James Averill is the sheriff of prosperous Jackson County, Wyo., when a battle erupts between the area's poverty-stricken immigrants and its wealthy cattle farmers. The politically connected ranch owners fight the immigrants with the help of Nathan Champion, a mercenary competing with Averill for the love of local madam Ella Watson. As the struggle escalates, Averill and Champion begin to question their decisions.
Just after Kramer goes to Wyoming to start his protection racket, cowboy actor Jeff Carson finishes a picture and goes camping. Attracted to Joyce Butler, he hires on at her ranch and quickly gets caught up in Butler's conflict with Kramer. When the Butlers refuse to buy his service, he has their cattle stampeded.
Billy the Kid and Fuzzy Jones are on their way out of Arizona being chased by some riders who hope to cash in on the reward money for their capture. They are warned in time by Ed Dawson, but Ed is wounded in the getaway. They get a doctor to attend to Ed. The latter tells them there is a range war in progress across the border and that he is looking for men to help make a cattle drive to the rail junction.
William Munny is a retired, once-ruthless killer turned gentle widower and hog farmer. To help support his two motherless children, he accepts one last bounty-hunter mission to find the men who brutalized a prostitute. Joined by his former partner and a cocky greenhorn, he takes on a corrupt sheriff.
A gunslinger returns to his hometown to warn of an impending outlaw gang attack, but he's met with hatred and fear for his previous killings.
A woman seeking revenge for her murdered father hires a famous gunman, but he's very different from what she expects.
Nineteenth century Wyoming: the wild West. Mild-mannered Tom Healy has a two-wagon theater troupe hounded by creditors because Angela, his leading lady and the object of his affection, constantly buys clothes. In Cheyenne, they meet with applause, so they hope to stay awhile: the theater owner likes Angela, and she keeps him on a string. She's also the object of the attentions of Mabry, a gunslinger who's owed money by the richest man in Bonanza.
When US Marshal Moses White is called to the Wyoming Territory town of Dogwood Pass he never realized the corruption and deceit that awaited his arrival. Sometimes one small seed of seduction and greed planted in the right situation can cause a whole town to go bad. One bad character leads to another and it all starts with a dead husband in a western town.