A neighborhood vigilante group runs amok, and Fish is AWOL on the day of his retirement.

Fish finally shows up for work, but refuses to acknowledge his mandatory retirement.

A quixotic environmentalist faces the high-priced lawyer hired by the chemical plant he's been assaulting.

Retired Sergeant Fish returns to assist Barney in locating a pilfered corpse.

Yemana scours the TV Guide to try to second-guess the felon who's aping the prime-time lineup crime shows; a drunk forgets the most important element in a hold-up - a weapon.

A blizzard holes up the 12th with an unwelcome guest—a corpse; a self-proclaimed prophet is sure that the weather is indicative of a new ice age.

A taxi company is irate when Wojo totals a borrowed cab while pursuing a robbery suspect; Lieutenant Scanlon tries to ferret out 12th Precinct corruption with a drug pusher.

The detectives clean up after three mental patients sit down to Thanksgiving dinner at an automat.

Wojo is buried alive after a tunnel collapses on a burglar burrowing towards the diamond exchange; a homeless Harris is combing Manhattan for a new apartment.

Neither the bomb squad nor the government recognizes a college student's physics project as a functional atomic bomb - but Detective Dietrich does.

A man charges a sperm bank with murder after the lab unwittingly destroys the man's last sample.

The detectives are unimpressed with a man who claims he's being visited by a poltergeist - that is, until they lock the man up and strange events begin occurring about the squad room.

Yemana is hospitalized with appendicitis; the cage is a stopping-off place for a sugar addict and an aging bounty hunter.

The city legalizes off-track gambling, to the delight of Yemana; a woman wants her husband arrested on a rape charge; a master of disguise perpetuates a crime spree.

Barney puts his career on the line by refusing to forcibly evict the tenants of a condemned hotel, while Lugar tries to figure out what to do with his vacation time.

The hotel situation now involves a SWAT team, while Dietrich learns the identity of his amnesic ""girlfriend.""

Wojo comes to Barney with a problem his superior would rather not know about; the 12th's new female detective has a very jealous husband, suspicious of her all-male co-workers; somehow a shoplifter escapes - in a wheelchair.

Barney uncovers, if you will, the real reason behind a woman's vehement insistence that a nude-painting exhibit at a local art gallery be shut down; the Millers may be heading for divorce.

Harris finally finds an apartment in the Village; a ventriloquist insists he's not responsible for his dummy's insensitive remarks; a prisoner holds the boys at gunpoint.

The members of the squad nervously await Barney filling out their evaluation forms. Meanwhile, Harris arrests a numerologist who will only give his name as ""1223,"" and a porno shop reporting vandalism turns out to be a mom and pop operation being hassled by their kids.

A man liquidates all of his assets into gold, much to his wife's dismay; Wojo claims he saw a UFO over Staten Island.

Harris does some extensive soul searching when he's offered a job on the mayor's security team.