When Max is fascinated by an intriguing autistic child he wonders if his own lost child is attempting to reach out to him. Meanwhile, Michael plays Santa to Maria and Liz's elves at a charity event. Isabel and Jesse share their first holiday together as husband and wife.
Elenco: Jason Behr , Katherine Heigl , Brendan Fehr , Shiri Appleby , Majandra Delfino , William Sadler , Nick Wechsler , Adam Rodríguez .