Play along with the Pawn Stars when Semie Moseley's personal guitar jams into the shop. Will Rick be able to hit all the right notes for this one of a kind instrument or will this deal go out of tune? Then, the Old Man and Chumlee discover signed photos of Enola Gay. Known as the plane that dropped the atomic bomb over Hiroshima, will the guys go nuclear for it? And later, a class of elementary school kids takes a field trip to the shop. Will Rick teach them the tricks of the trade or will the guys disrupt class?