Breeze out into the bayou with the Cajun Pawn Stars as they look to buy a classic Louisiana airboat. Will their test drive through the swamp greatly propel negotiations or will a faulty engine have them paddling back? Then, the shop checks out two Civil War diaries uncovered from a field lap desk compartment. Mentioning Union General William Sherman, will these journals spark serious interest in old secrets or will these accounts remain hidden for years to come? And later, Jimmie gets a hankering to own a vehicle of pure 70's muscle--a 1972 Chevelle. Offered in a very creative trade, will Jimmie put the pedal to the metal to make the deal or will the seller's tactics veer everything off course?