Dodge City. A wide-open cattle town run by Jeff Surrett. Even going on a children's Sunday outing is not a safe thing to do. What the place needs is a fearless honest Marshal. A guy like Wade Hatton, who helped bring the railroad in. It may not help that he fancies Abbie Irving, who won't have anything to do with him since he had to shoot her brother. But that's the West.

After Confederate officer Blayde Hollister's home and family are destroyed by the Marlowe Brothers during the Civil War, he swears revenge, refusing to surrender and becoming a wanted man. In order to pursue the three brothers into Texas, Hollister fakes his own death in a staged gunfight with his friend Wild Bill Hickock. He then befriends Martin Weatherby, the newly appointed U.S. Marshal to Dallas, an affable, but not very experienced lawman, who agrees to let Hollister assume his identity. The eldest of the Marlowe brothers, Will, masquerades as a law-abiding real estate dealer while feigning righteous indignation over the brutal acts of lawlessness and violence visited on the honest citizens of Dallas by his sociopathic brothers, Cullen and Bryant. (Their parents were evidently fond of the renowned poet William Cullen Bryant). When Hollister becomes a rival for the affections of Weatherby's aristocratic fiancee Tonia Robles, Martin wonders whether he should let Blayde know that ...

A band of vigilantes catch Jed Cooper and, incorrectly believing him guilty of cattle rustling and murder, hang him and leave him for dead. But he doesn't die. He returns to his former profession of lawman to hunt down his lynchers and bring them to justice.

John Books an aging gunfighter goes to see a doctor he knows for a second opinion after another doctor told him he has a cancer which is terminal. The doctor confirms what the other said. He says Books has a month maybe two left. He takes a room in the boarding house and the son of the woman who runs it recognizes him and tells his mother who he is. She doesn't like his kind but when he tells her of his condition, she empathizes. Her son wants him to teach him how to use a gun. Books tries to tell him that killing is not something he wants to live with. Books, not wanting to go through the agony of dying from cancer, tries to find a quicker way to go.