The Santa Fe Railroad wants to build a spur through Trinidad, New Mexico, linking the town to the cattle trade. Only one man stands against it - rancher George Cullen. At the request of the town council, Sheriff Caleb York rides out to the Bar-O to reason with his old friend. With murder in the wind, the whole town's in danger. To bring a killer to justice, and protect the woman he loves, Caleb York must strap down his Colt .44, enter the big game, and bet his life on the turn of a card - and the speed of his draw.