As Andy ponders the lyrics to "Pop Goes the Weasel", he and Bobby must help a murder witness who has a perfect head for details but is otherwise out of her mind. After she gets kidnapped, Andy's hypocrisy gets a workout when he castigates ADA Leo Cohen for making a deal to get her back safely, leading Jill to give Leo some kind words. Greg and James find out an Indian man's brother is behind a series of cab robberies.