Follows the now-adult Ralphie as he returns to the house on Cleveland Street to give his kids a magical Christmas like the one he had as a child, reconnecting with childhood friends, and reconciling the passing of his Old Man.

The Curtis' family is selected to test a new home device: a digital assistant called AIA. AIA learns the family's behaviors and begins to anticipate their needs. And she can make sure nothing - and no one - gets in her family's way.