Elaine finds a real, live six-week-old baby in a nativity scene manger and wants to keep him. Cage and Ally represent Elaine in her fight to gain custody, while the rest of the office (full of child-less lawyers) become enchanted with the baby. Even Ling considers having children. Billy attempts to reconcile with Georgia. In preparation for the Christmas party, Elaine convinces Ally to sing a sexy song but Richard and Billy have their reservations.

Georgia blames "Cage & Fish" for the new Billy, and is suing the firm for the break-up of their marriage. She cites many issues as leading to Billy's breakdown and the ultimate dissolution of their marriage. However, during the court hearing they discover that the root of the problem lies elsewhere.