Let's get ready to rumble with the Pawn Stars as the guys check out a pair of punching bags owned by Rocky Marciano. The only champion to go undefeated in his career, can they land a knockout in negotiations? Then, Rick checks out a Swiss Doxa pocket watch from the 1800s. Will he give it the time of day? And later, when Corey installs a punching bag in the warehouse, the Old Man is inspired to show off his boxing skills.