This is sort of a Cain and Abel story about a rancher (Burt Lancaster) that takes in an orphaned boy. His real son gets jealous and tries to get his adopted brother in trouble, so that he can get the whole ranch.
Four of the Reno brothers are outlaws. One is a respected farmer. It’s the biggest double-cross in Western history. Randolph Scott is a secret agent sent to bring the Reno brothers and their conspirators to justice.
John Wayne plays John Blair. He and his partner, Larry Adams (Lane Chandler) are out of work when the arrival of telegraph ends the Pony Express. They get swindled by Cal Drake for a telegraph line and equipment to a ghost town. John determines that he will operate the line and learns that a coach race will be staged and he signs up for it. The fastest team in the race will win a $25,000 government contract.
In Old Oklahoma (re-issue title is War of the Wildcats) John Wayne fights it out over some oil leases and a woman.