Eye doctor Steve Finch is known as the "Mr. Christmas" in town and just wants his family to celebrate a traditional Christmas. All of that changes, however when the Hall Family moves in across the street and Buddy Hall, a used car salesman has just one goal: decorate his house with enough lights to see from space! Buddy soon takes on the new title of "Mr. Christmas" because of his endeavor, much to the frustration of Steve. The ensuing duel between the two neighbors comes to the forefront this Christmas, even if it means shoving aside their families.