Joyce humiliates an unprepared Bates on the witness stand; Renko pushes an assault victim to press charges; Furillo's son is missing; and Calletano expresses his true feelings at a luncheon honoring him as the Hispanic Officer of the Year.

Washington's guilt over shooting a bystander resurfaces; Hill's vagabond father pays a visit; Belker goes undercover as Santa Claus; and Bates spends the holiday in the hospital.

Goldblume and Furillo clash over using a former gang member to obtain evidence against a gang leader in a murder case; Renko's mounting family problems affect his work; Bates, Flaherty and Joyce try to reconcile a Latin gigolo with his lady friend.