Hired by a local cattle rancher to track down a cowhand accused of stealing a bank deposit, McCoy's three best are straggled, by two events that will change the course, of one of their lives. A gun battle with the infamous Dan Wells gang leads to an introduction of the Longhairs, and a request by them to help safeguard their procession to land owned by Leif Vanfell. Faced with everyday struggles and a botched ambushing as they make their way through the Canadian Rocky Mountains, they apprehend the Nesbick brothers, and as a requirement by the laws that govern them, McCoy's men have to bring the two brothers in alive. Sometimes though, even lawmen break laws.