Police officers are the target of a cop killer on the streets and are pestered by rats inside the precinct. Frank and Joyce are looking to buy a bigger house. Belker is undercover disguised as a bag lady.
Frank Furillo has killed his first man when stopping an armed robbery the night before. Officer Marty Nichols is gunned down by the cop killer, or so it seems. Joyce defends the Rutledge family against the abusive father, but the court's decision leads to more even tragedy.
Corrupt cop Marino is arrested and spills the beans on his entire precinct including revelations about Marty Nichols. The cop killer hits Coffey in the arm before calling to say he'll give himself up Freddie's diner.
Furillo breaks the news of Esterhaus's death. Bates is given serious consideration for Sergeant. Coffey's girlfriend is sexually assaulted. Belker goes undercover as a truck driver to try and catch thieves that are stealing poultry.
Goldblume takes a special interest in call-girl Whitney Barnes. Her arrest in a murder case turns up video tapes of her and several important men. Leo, upset about his cheating wife, is first taken hostage in a cell by the Rodriguez brothers and then accused of stealing police property. Belker is taking the death of Esterhous especially hard.
A nervous Lucy Bates takes over as roll call sergeant and finds she has to 'earn' the podium. Whitney Barnes' pimp turns himself in, only to be confronted by a professional hit man inside the Hill precinct. Frank honors Phil's last wishes by scattering his ashes on the Hill in an informal ceremony attended by most of the day shift.
Furillo gets in trouble with Mayor Ozzie Cleveland for criticizing 'Operation Stop 'N' Cop' on the news. Joyce faces a situation of life and death while visiting a client. Belker arrests his regular pickpocket one last time.
Hunter takes Fay out to lunch only after Frank and Henry's permission. Renko gets mixed up feeling when Daryl Ann reveals she is pregnant. Joyce is pressured to identify Timothy Mullens, causing his brother William to threaten her life in front of Frank.
Furillo has been relieved from command, leaving Calletano and Hunter to share command. Goldblume tells Belker, Washington and Garibaldi (replacing a sick LaRue) to tail William Mullins and make sure he stays away from Joyce. Jesus Martinez is assaulted by his pregnant girlfriend.
A former Blood gang member has been appointed to the Youth Corps Summer Job Program and becomes a target for other gangs, specifically the Diablos. Garibaldi strikes a deal with a man who's car he hit by accident. Belker is undercover trying to infiltrate a group of video poker vendors in 'Operation Straight Flush'. Joyce tells Frank she needs to have some time for herself.
Ray Calletano is a contestant on the game show 'Lucky Ducks'. Hunter is concerned about his ill horse Apollo. Coffey and Davis arrest a man who'll eat anything for money. The tuxedo fitting for Renko's wedding attendants turns into a brawl. Later his first meeting with his future in-laws doesn't run smoothly either.
Renko is having second thoughts on his wedding day. He and Bobby are assigned to take out a car equipped with a computer, and they lose the car. Coffey places a bet on a horse race because the officers haven't collected enough money for Renko's wedding present. Garabaldi persuades Goldblume to try a video dating service with him. The bookies busted by Belker high jack their prison bus and demand Belker be handed over to them in exchange for their hostages. This occurs when Ballantine is filling in for Hunter as leader of the EAT squad.
Goldblume goes after the guy who raped his ex-wife, even though she refuses to press charges. A member of Hunter's SWAT team is put under scrutiny after shouting an obscenity while firing at a hostage taker. Calletano participates in an undercover operation at a hotel. Davenport performs a last ditch effort to save a former client who is scheduled to be executed.
When Lieutenant Hunter upsets clerk-typist Rhonda Kimmel, she barricades herself in the male toilet LaRue spends the night with Cathleen McConnell, the victim of a car-jacking, but during the night she receives news of the murder of her husband - LaRue wonders if he has been set up as an alibi. An illegal cable TV installer is arrested, and Davenport turns out to be one of his customers; she is unwittingly involved, but Furillo uses the situation to engineer an end to their separation. Rachel Goldblume's rapist is released on bail, murders his girlfriend, and is ...
An assassination attempt made on Mayor Cleveland leads to a investigation in police corruption. Belker, LaRue, Coffey, Hunter, Calletano, and Washington embark on a trip to Las Vegas which begins with Belker winning $5,000. Hill and Renko's judgment call puts a store owner's life in jeopardy.