Prepare to dive with the Pawn Stars as the guys check out a first edition copy of 20,000 Leagues Under The Sea. One of the rarest first editions, can they navigate this monster deal? Then, a collection of signed Metallica memorabilia rocks into the shop. Will the negotiation have Corey and Chumlee banging their heads? And later, when Rick starts taking guitar lessons, the guys try to talk him into a pawn shop jam session. (thetvdb.com)