Gringo, leader of a gang of outlaws, famous for his cruelties, assaults and massacres, is Jack's father, who feels out of place in the gang and don't approves his father's actions. After the bloody and cowardly massacre of a peasant couple, Jack decides to leave the gang and start a new life. On the escape, he takes Ana, the daughter of the murdered couple, saving her from Gringo. Together with Cara de Gato, Jack's old friend who is also hunted by Gringo, they go to the nearest town, Sacramento, persecuted by Gringo who decides to chase the trio to kill them.