Smoke Jensen has journeyed up to the Colorado Rockies to sell a prized bull to a local rancher. Instead, the rancher and his wife are mercilessly slaughtered by outlaws only moments before he arrives. Smoke pulverizes two of the murderers and drags two others to the town of Brown Spur for justice. But come hanging day, the killers are on the way to the gallows when a gang of raiders thunders into town and rescues them. When the bloody onslaught is over, dead bodies litter the streets and Smoke Jensen is a man on a mission.