In the encampment of Navarrete’s mercenaries, the pards identify their target: the impregnable stockpile! A crafty move saves the mission: after showing off his skills as a poker champion, Tex is welcomed into the crook’s villa – the don is inveterate gambler. The ranger apprehends him, forcing him to open the powder magazine. An ear-splitting explosion and a bullet in his body put an end for ever to don Navarrete’s dreams of power and to his life as well. And on the banks of the Rio Bravo, a horde of vengeful rurales is swept away by Negrito’s Apaches.