Black Jack (1968)

Following the robbery of a bank in the Wild West a gang gathers around Jack Murphy, their leader. Things go awry when Skinner, Reb, Mathias and the brothers, Bill and Gordon, realize Jack will divide the loot for his own good only. Furious with him, they decide to betray him and it is not long before they take action. They torture him and leave him for dead while his sister is raped and killed. But Jack survives and goes for revenge.