Sun Valley Cyclone

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.

One of the last bills signed by President Lincoln authorizes pushing the Union Pacific Railroad across the wilderness to California. But financial opportunist Asa Barrows hopes to profit from obstructing it. Chief troubleshooter Jeff Butler has his hands full fighting Barrows' agent, gambler Sid Campeau; Campeau's partner Dick Allen is Jeff's war buddy and rival suitor for engineer's daughter Molly Monahan. Who will survive the effort to push the railroad through at any cost?

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.

A wandering cowboy gets caught up in a range war.