A Christmas episode, lighter than usual. The ""villain"" is a nebbish who steals from parking meters. When he gets arrested, he makes off with a squad car, which so enrages Samuels that nobody gets to leave early on Christmas Eve. The villain is played by character actor David Masur The ""B"" story is that Petri's Lauren daughter is born. We first meet Dory McKenna as Chris' boyfriend.

C&L are assigned to work for Sgt. Dory McKenna on a murder investigation. The baddy is a slumlord who is trying to get rid of his tenants so he can make a co-op out of his building. The kicker is that Dory is using cocaine. After he snorts up at Mary Beth's and doesn't show up as backup, Chris threatens to turn him in unless he gets help for his addiction.

Dory McKenna is back, rehabilitated from cocaine, and C&L again get to assist him. Meanwhile, Samuels must deal with a former subordinate who is now a captain and wants to ""improve"" the 14th Precinct.

A cop killer has just been paroled. C&L have to guard him for only a little while, but of course he gets killed on their shift. This was a popular killing, but the ladies don't like anybody messing with them, so they track down the killer.

Both the wife and daughter confess to a killing, but they can't both have done it. ADA Feldberg has a great time sarcastically pointing out how two confessions are not better than one

Cagney shoots an Hispanic teenager. It doesn't matter that he attacked her or that he was full of angel dust - the local press has her drawn and quartered.

The 14th Precinct has done its paperwork so badly that everyone (except for Petrie) has to come in over the weekend and clear it up. but C&L discover a statute of limitations that's about to expire and they must serve the warrant that weekend. The paperwork doesn't get done. Petrie is no better off - Claudia makes him spend the weekend painting the place.

Dory's sponsor in the cocaine rehabilitation program is caught with cocaine. When Dory defends him, Chris has to consider the possibility that Dory is still using it himself

The crime story concerns a cat burglar who never uses a gun. Yet somebody gets shot. Chris is now sufficiently involved with Dory to meet his kids by a prior marriage

C&L think it's wonderful to be assigned to a hot case under the hot Captain Hennessey. it seems that his interest in Chris is more personal than professional. Finally, Chris announces that she will file departmental charges against him for sexual harassment.

Cagney's sexual harassment case comes to trial (follow up to #49). Lacey is busy with the bunco squad. She manages to get approached by a completely different bunco scam and reels them in.