That Sinking Feeling

The tension is sky-high for the Pawn Stars, when a book signed by Charles Lindbergh flies into focus. Chronicling his historic flight, can they stay alert during a grueling negotiation, or nod off and lose control? Then, a medal commemorating the sinking of the Lusitania torpedoes into the shop. Issued by Germany to celebrate their infamous attack, do they navigate dangerous waters for this rare piece, or let it sink without a trace? And later, a guy tries to throw Rick off balance when he brings in a rare 17th century Dutch money scale. Will the deal tip in Rick's favor?