An unathletic boy with autism strives to become an unlikely marathon champion giving his unfulfilled father purpose and a second chance at putting his family first.

Just days before Christmas, an LA real-estate lawyer and his eleven-year-old son magically swap bodies. As they walk in each other's shoes, from a cutthroat law firm and the frightening days of sixth grade, the father and son rediscover what it means to be family.LOS ANGELES, night. Inside the TAYLOR residence, ROBBY (11) sits behind a dimly lit laptop screen, scrolling through Christmas toys on a shopping website. As he climbs into bed, a loud THUMP is heard. He goes to his front door and looks...