The Farmer family uses blow molds and inflatables, featuring a roof with more decorations than most family's entire display in Alexandria, Virginia; the Pennington family show a high-tech and jaw-dropping display in Corriganville, Maryland; the Padilla family has an interactive display reminiscent of a mini-Disneyland in Burbank, California; and the Register family uses exhaust pipes and other recycled goodies for a full throttle masterpiece in Surf City, North Carolina. Carter Oosterhouse picks the final winner of the season.