An outlaw is cutting a legendary swath throughout the Southwest, having robbed banks, stagecoaches, and trains, without anyone ever hearing his name. The only way he is ever recognized is by his freakish height of more than six-and-a-half feet. For this reason he's known as "The Tall Texan," since most of his early jobs took place in Texas. Lawmen from all over the Southwest have failed in their attempts to find him. When the Pinkertons are hired, they decided it will take a legend to catch a legend, so they recruit the only man they think can do the job—The Gunsmith!