A murder weapon is found during the city's gun recovery program, prompting detectives to take another look at the accidental 1987 drive-by shooting of a little girl.
Founding Crane, Poole & Schmidt partner Shirley Schmidt (Candice Bergen) returns to help bring order to the chaotic office.
Russell bonds with the grieving mother of a murdered boy; Sipowicz tries to make sense of the Bible verses the homeless mute shows him.
Detectives' tempers threaten a case involving a man suspected of killing his child; Medavoy is eager to share his knowledge of Judaism.
Alan Shore's attraction to Shirley increases; Denny Crane is drawn to Bethany as he helps her try a case against an HMO.