It's beginning to look a lot like Christmas as season 10 of the tree-mendously popular series begins and four families face off! The Hellewell family creates an incredible interactive display that makes everyone of all ages feel like little kids with their custom-made inflatables, a giant playable piano and more in Newark, California. The Pratt family showcases their sweet-themed display with the first-ever motorized amusement park ride taking guests through Lollipop Lane, Peppermint Place and Marshmallow Way in Scottsdale, Arizona. The Maan family puts on a dazzling and awe-inspiring light show, combining traditional Christmas with the Indian Diwali Festival of Lights, featuring over 50,000 pixels in their display in Manteca, California. And the Lunsford family carries on their family tradition of building a stunning light display on their 90-acre farm, which has been in the family since the 1700s in Bowman, Georgia. Watch as judge Carter Oosterhouse decides who will win the $50,000 prize and coveted Light Fight Trophy