Springfield calibro 58

At Fort Stockton, Tex and Carson are tasked by Colonel Patterman with investigating arms trafficking between Comancheros and Indians. A Comanche implicated in the affair is allowed to escape and the pards pursue him. The red Indian realizes he is being followed and is killed by Carson, but the rangers catch and make his handler, the Comanchero Sid Ketchum, sing. At the basis of everything is the information gathered by Will Kinkaid, Sid's partner, regarding an old load of Southern carbines believed to have sunk in the river during the Civil War.