A seller walks into the shop hoping to score with his Magic Johnson 50th birthday invitation. Is the deal a slam dunk? Then, Chum takes a look at some joker playing cards used as props in "The Dark Knight." Will he play his cards right, or will the seller pull a disappearing act? Next, Corey heads to the range to test out a Civil War-era derringer. Will he pocket this pistol, or shoot it down? And later, Rick's radar picks up a box of ship models used to train the U.S. Navy during World War II. Can he helm this deal, or is it a losing battle?