Play detective with the Pawn Stars when they try to discover the origins of a mysterious rifle brought into the shop. Will Rick pull the trigger on the deal of his life, or will the negotiation blow up in his face? Then, Corey and the Old Man are presented with a signed print by Leroy Neiman. Considered one of America's greatest living artists, do the guys draw up an offer for this highly collectable piece of art, or get painted into a corner? And later, a collection of old sports pins needle their way into the shop. Can they nail down a deal or will this one fall apart?

The Pawn Stars call "shotgun!" when a 1918 Buick Touring Car journeys to the shop. Top of the line for its day, will the Old Man's soft spot for old cars make him loosen up his wallet? Then, Rick and Chumlee encounter a tennis racket signed by tennis legend Arthur Ashe. Can Rick serve up a monster offer for this rare piece of sports memorabilia, or is the price too far out of bounds? And later, a guy sneaks in with a set of fake books used to smuggle guns out of Germany after WWII. Will the guys try to conceal their interest, or is the seller trying to sneak one by?