The Mattos family displays a vibrant, fully custom light show in their Apricot orchard, incorporating original music and homemade yet high tech digital artwork in San Jose, California; the Martel family decks out their front and back yard with shimmering lights, a high speed Ferris wheel, little houses with hidden elf scenes, and more for their 33rd year in Hamilton, New Jersey; the Irizarry-Serrano family displays a mystical "City of Lights" with breath-taking DIY elements in Lake Mary, Florida; and the Doody family transforms their home into the Vegas strip, featuring a custom Las Vegas sign, a massive fountain, and a light show in Las Vegas, Nevada. Judge Taniya Nayak makes the decision.

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.