In sunny El Paso, Texas, host Mark L. Walberg and appraiser Chris Mitchell explore how the innovative "Mississippi" rifle dramatically changed the odds in the Mexican-American War, as well as the current market for this weapon. Highlights include a collection of signed Andy Warhol soup cans and pop art; a collection of signed Cormac McCarthy first editions; and a circa 1570 "Lotto" Oushak rug, initially purchased by the owner's uncle for $350, and conservatively valued between $30,000 and $40,000.