Four families showcase their incredible Christmas displays, including the Johanessen family's 250,000 light home and "Santa's Retreat" in Winter Park, Florida; the Preston family's epic display with America's tallest and brightest Nativity scene in Kingman, Arizona; the Piper family's express-train ride through their multi-acre property in Wake Forest, North Carolina; and the Pugh family, whose former Navy pilot brings spirit and patriotism with their servicemen salute in Chesapeake, Virginia. Judge Carter Oosterhouse awards $50,000 and the coveted Christmas Light trophy.