A Man and a Colt [Un hombre y un colt]

Dakota Joe is a hired gunman. For that reason he arrives at a border ranch in Mexico hired by the landowner Don Carlos, to eliminate the village doctor, a good man who helps the poor. So Dakota Joe decides not to fulfill his commitment and together with a former outlaw who is now honored, they plan to steal all the money that Don Carlos stores in the safe and to support the revolution of Zapata