Tied up in his undercover case, Belker misses his wedding. A veteran cop is caught planting a gun on a dead suspect. A mugger steals a heart meant for transplant. LaRue tries to stay honest as he shops for the department's wedding gift for Belker.
Garfield maintains that Steger planted a gun on the dead suspect. Because of a strike the cops have to haul corpses to the morgue. Lucy's ex-lover Hopper comes to lodge a complaint and Coffey gives him the bum's-rush.
A powerful group wants Furillo to run for mayor. Larue is enamored with a snake-wielding fence. Famous singer Johnny Angel is arrested, and Renko invites him home. Belker finally marries Robin. A blow on the head makes Hunter believe he's a prisoner of the Soviets.
The station deals with a smoking ban. Chief Daniels offers to endorse Furillo as his replacement in return for a favor. LaRue pitches woo with a snake-loving tattooist who is working with him to bust thieves.
Goldblume's involvement in a neighborhood dispute leads to a tenant's suicide. A music video is filmed at Hill Street. Bates pays off Fabian's mother to assign guardianship. Belker busts a crooked parole officer who runs a car theft ring.
Capt. Furillo is shot on the courthouse steps, and Joyce recalls the details of their meeting and courtship. The shooter dons a cop uniform and stalks Frank in the hospital. Buntz tracks him down and they have a confrontation in a stairwell.
Frank convalesces at home. Fabian's mother tries to hit up Lucy for more money. Buntz appears on a court TV show. LaRue and Washington get in trouble when they botch a federal gun-running investigation.
Belker goes undercover in a lunchwagon. Jesus Martinez is wanted on suspicion of murder. A Polyneisan shows up saying he's the husband of Hunter's girlfriend. Golblume reluctantly considers selling his apartment house. Former khaki paramour of Buntz returns to proposition him, while his friend Tommy continues to behave suspiciously.
Ambitious city councilman Wade hassles Captain Furillo about runaway crime. The formerly promiscuous Grace Gardner has become a nun, and she wants to help make the Blues feel better. Buntz deals undercover with some dangerous shylocks, and a delay in getting payment to them has dire consequences.
Councilman Wade tries to clear his name by digging up details from Washingon's personal life. Sister Chastity, formerly known as Grace Gardner, finds herself tempted by the flesh. Goldblume is given an offer to write his memoirs. Belker is under cover at a car chop shop. Renko and Hill have to deal with a loud mouth shirt salesman.