David Doty

Dorothy and Stan are ordered by a judge to inhabit one of their substandard apartments.

Three days before Christmas the body of a bearded man in a tailor-made Santa outfit turns up in a sewer; Brennan visits her father in prison and plots a nontraditional holiday reunion.

President Bartlet calls on an eccentric British diplomat for help when the threat of nuclear confrontation is imminent.

A pregnancy scare prompts Lois and Hal (Jane Kaczmarek, Bryan Cranston) to recall the births of each of their four sons. With Frankie Muniz.

David, Nate and Brenda attend a convention in Las Vegas; Rico returns.

Elliot tries again to find a balance between dating and her career, as Carla and Turk move forward with their wedding plans, J.D. feels as though he is losing a friend. -- When Carla (Judy Reyes) and Turk (Donald Faison) set the date for the wedding, JD (Zach Braff) realizes this is the end of an era in their friendship, but his efforts to celebrate this milestone are rebuffed by Turk. Elliot (Sarah Chalke) is determined to win back her old boyfriend Sean (guest star Scott Foley, "Felicity"), but is again faced with tough choices between a relationship and her career.