It was one of the ugliest vendettas in the remembered history of the frontier -- a war between cattlemen and sheepherders. Frank Rachel rode into the Basin with nothing but a powerful desire to start his own spread. Suddenly, there was fighting all around him, and Frank Rachel was forced to call on the naked nerve he didn't even know he possessed, to kill -- or lose everything. Based on a true story, The Fourth Horseman tells of the Peaceful Basin...