Old Oklahoma Plains

Jubal Troop is a cowboy who is found in a weakened condition, without a horse. He is given shelter at Shep Horgan's large ranch, where he quickly makes an enemy in foreman Pinky, a cattleman who accuses Jubal of carrying the smell of sheep.

A cattle-vs.-sheepman feud loses Connie Dickason her fiance, but gains her his ranch, which she determines to run alone in opposition to Frank Ivey, "boss" of the valley, whom her father Ben wanted her to marry. She hires recovering alcoholic Dave Nash as foreman and a crew of Ivey's enemies. Ivey fights back with violence and destruction, but Dave is determined to counter him legally... a feeling not shared by his associates. Connie's boast that, as a woman, she doesn't need guns proves justified, but plenty of gunplay results.

When the South loses the war, Confederate veteran O'Meara goes West, joins the Sioux, takes a wife and refuses to be an American but he must choose a side when the Sioux go to war against the U.S. Army.

A Union Cavalry outfit is sent behind confederate lines in strength to destroy a rail supply center. Along with them is sent a doctor who causes instant antipathy between him and the commander. The secret plan for the mission is overheard by a southern belle who must be taken along to assure her silence.

Ross Bodine and Frank Post are cowhands on Walt Buckman's R-Bar-R ranch. Bodine is older and broods a bit about how he will get along when he's too old to cowboy. Post is young and rambunctious and ambitious for a better life than wrangling cows. When one of their fellow cowboys is killed in a corral accident, Post suggests a way into a better life for himself and his friend: robbing a bank. Bodine reluctantly joins in the plan and the two contrive to rob the local bank. They make good their escape initially, but Walt Buckman and his two sons, John and Paul, are incensed at this betrayal by their own trusted employees. John and Paul set out to bring Bodine and Post to justice.

At a Mexican ranch, fugitive O'Malley and pursuing Sheriff Stribling agree to help rancher Breckenridge drive his herd into Texas where Stribling could legally arrest O'Malley, but Breckenridge's wife complicates things.