Too Much Gold for One Gringo (1972)

A bunch of outlaws awaits the release from prison of an old goldminer, believed to have hidden 28 sacks of gold 20 years before... They all want the old man to speak, but only one of them will fulfill his dream. The shrewdest of the outlaws, Trash, gains the reliance of the old man and with a Mexican desperado, Josè, they start the quest for gold. But too many people are involved in this quest, including a dangerous killer with his gang, Firmin Rojas.