Una lama nel buio

The network of conspirators against the President is unraveling. In Washington, where the leaders of the conspiracy are gathered in a luxurious hideout, Allan Pinkerton knocks on their door presenting the bill. Some time later, Nachite and his cousin Labbro Tagliato take the train to reach their friend Tex in Canon City, forced to travel on the freight wagon! The wagon containing the two Indians is thus detached by some scoundrels and crashes into a ravine! Later, Nachite's widow tells Tex that Labbro Tagliato had recognized who was leading the Pawnee massacre that took place ten years earlier in Mariposa Creek.