Twenty-two years earlier Kirk Dean murdered his brother Fred Dean Sr. Now Fred Dean Jr. is looking for his father's killer. Unknown to Fred, Bill Barton who now works for Kirk, witnessed the murder.

The Colonel sends Fred Dawson and Doc Flanders to investigate a cattleman sheepman war. Posing as a two man medicine show, they quickly become involved. When Fred tries to bring the two sides together, Joe Allison is shot and Fred blamed. With Fred in jail and a lynch mob on the way, Doc tries to break his friend out.

When it appears that Fred Jamison is a member of Red's gang, he is kicked out of the Rangers. But it's just a plot between Fred and the Ranger Captain. Fred then gets into Red's gang and makes plans that will enable the Rangers to bring them all in. But his message to the Captain is intercepted and the hoax revealed.