For the first time ever, "The Great Christmas Light Fight" features a neighbors vs. neighbors episode! Showcasing their incredible holiday displays are next-door neighbors, the Richards/Silver families, and their synchronized light show in Riverview, Florida; the Harhut family's combined properties of over 1,300 blow molds in Peckville, Pennsylvania; the Phifer family's display including an 80-foot tall real-life mega tree and Santa tracker in memory of their mother in Henrico, Virginia, and the Wilz family's patriotic display designed by military siblings in Bismarck, North Dakota. Who will be awarded $50,000 and the coveted Light Fight trophy?