A runner trying to raise money for cancer research is victimized; Daniels asks Furillo to head up an internal investigation of corruption arising out of Keenan's death; Garibaldi's death shakes the station house; Lee Cleveland comes to the end of his rope; and Howard gets a shock from his latest love.

Belker takes an unexpected bus ride to Springfield; Sid turns Louis Russ over to Buntz, which begins the unravelling of Keenan and Garibaldi's deaths; Jablonski tries to deal with an incompetent khaki officer; and Hunter makes a canine investment.

Furillo's corruption commission delivers its findings and antagonizes Daniels, who is willing to sacrifice a night shift cop involved in an off duty shooting that has incited public opinion; Alan Branford returns as Rambo; and Buntz explores his duties as personnel officer.

Buntz catches a mugger only to lose him when the victim won't press charges; a sculptor refuses to let anyone remove his obscene work of art; Lynnetta pushes Neal about commitment to her and her son with tragic results; Belker goes undercover to learn why so many vagrants have fallen from high buildings recently.

Sgt. Jablonski risks his own money to catch a pair of confidence men; Sgt. Belker acts as a courier for a pair of devious Hasidic jewelry merchants; and Captain Calletano reacts badly when Buntz accuses a lazy Polk Avenue officer of dumping vagrants in Hill Street precinct.

Belker's undercover at a bookie joint gets him involved in a protest against Nazis parading through the precinct; Furillo angers the chief and many others with his hard line pursuit of a senile drug king on trial for a relatively minor sale; Hill's father drifts into town claiming to be dying; and Jablonski tries to mediate between a priest and a scrap metal dealer.

Belker goes to the dogs working undercover at the pound; Furillo chases down the reason he's been denied mortgage insurance; LaRue and Washington bust a former baseball star for drunken driving; and Buntz is held hostage by a vicious parolee.

Coffey tries to mediate between an irate landlord and a tenant who insists an image on his water stained wall is that of the Virgin Mary; the Furillos tries to renew a family relationship with his parents; Buntz uses ""Officer Giblet"" to make a drug bust; and the guys compete in a benefit tug of war competition.

Hill, Renko and Buntz look like heroes when they retrieve a stolen heart needed for a transplant; rookie officer Ron Garfield finds himself in trouble again when a second gun shows up at an officer involved shooting; and Belker misses his wedding ceremony when his undercover as a cocaine cooker heats up.

IAD Shipman continues investigating the Garfield shooting; Hill gets a nasty surprise when he and Renko draw duty delivering corpses to the morgue; Belker is kidnapped on the eve of his second scheduled wedding.

Hunter hallucinates he's aboard a Russian submarine; Belker finally gets married; Renko busts his favorite country singer again; Furillo meets with a political power broker about the Chief's job; Hill takes his daddy home to St. Louis for his burial; Buntz' old partner comes asking for help with a loan shark; and LaRue and Washington use a lady tattoo artist to help them find a killer.

LaRue and Washington continue to stake out the tattoo parlor for a killer; Bates has a tough decision to make about Fabian; Jablonski tries to enforce a city ban on smoking in the station house; Hill meets someone special at his father's funeral; Chief Daniels surprises Furillo by offering to endorse him as his successor; Buntz cuts some corners to get a dealer selling killer synthetic heroin off the streets.

Belker goes undercover to expose a corrupt parole officer; Goldblume clashes with Furillo over the demolition of some low-rent housing in his new neighborhood; Bates makes a deal with Vivian DeWitt; Jablonski tries to cope with a crew making a music video in the station house.

Joyce reflects on her past relationship with Furillo as she waits for him to come out of surgery after he's shot on the courthouse steps just prior to testifying against a recaptured gangster. Meanwhile, Belker is sent undercover at a meat packing plant while Buntz searches for the gunman.

Coffey persuades Bates to file guardianship papers for Fabian; Furillo considers returning to work as Daniels asks him for help getting the consultancy job he wants; Buntz appears on a TV small claims court; an impatient old woman messes up Belker's undercover at a pawn shop; and Hill, Renko, LaRue, Washington and Goldblume stumble on a courier for an international arms purchaser and deal themselves into his action.

Bates agonizes over identifying Coffey's killer; Hunter uncovers an unexpected thief in the station; a prostitute sells out Jesus and Attorney Brown in a bribery scandal; and Belker's harassed by an overzealous security guard.

Jesus, scared of being pinned with Attorney Brown's murder, agrees to go undercover against a crooked judge; Hunter loses Prunella to a large Samoan; Belker poses as a loan shark in a roach coach; and Buntz' former partner asks another favor.

A prostitute anxious to shield her pimp lodges a complaint of sexual harassment against officer Kate McBride; Goldblume takes his frustrations out on a rookie who lost a jumper; Ballantine freaks out again; and Buntz confronts Donahue about the murder of Dellaberti.

Wachtel sentences a slumlord to time in one of his dilapidated units; Furillo is warned that Cleveland stands to benefit from an investigation into Donahue's death; and Mary finally gives up the evidence needed by Buntz.

The Hill reaches a crisis point of outraged citizenry and stampeding press coverage when Hill and Renko rescue an escaped mass murderer captured by a vigilante mob, and Belker can't stop being a cop even as he coaches Robin through labor.