Sept. 15, 1977, midnight 10.0
S4E1 - Goodbye, Mr. Fish (1)
A neighborhood vigilante group runs amok, and Fish is AWOL on the day of his retirement.
Sept. 22, 1977, midnight 10.0
S4E2 - Goodbye, Mr. Fish (2)
Fish finally shows up for work, but refuses to acknowledge his mandatory retirement.
Sept. 29, 1977, midnight 9.0
S4E3 - Bugs
Listening devices discovered in the squad room may have come from Internal Affairs - or the Nixon administration!
Oct. 6, 1977, midnight 0.0
S4E4 - Corporation
A quixotic environmentalist faces the high-priced lawyer hired by the chemical plant he's been assaulting.
Oct. 20, 1977, midnight 10.0
S4E5 - Burial
Retired Sergeant Fish returns to assist Barney in locating a pilfered corpse.
Oct. 27, 1977, midnight 10.0
S4E6 - Copy Cat
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.
Nov. 3, 1977, midnight 10.0
S4E7 - Blizzard
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.
Nov. 17, 1977, midnight 10.0
S4E8 - Chase
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.
Nov. 24, 1977, midnight 9.0
S4E9 - Thanksgiving Story
The detectives clean up after three mental patients sit down to Thanksgiving dinner at an automat.
Dec. 1, 1977, midnight 10.0
S4E10 - Tunnel
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.
Dec. 15, 1977, midnight 10.0
S4E11 - Atomic Bomb
Neither the bomb squad nor the government recognizes a college student's physics project as a functional atomic bomb - but Detective Dietrich does.
Jan. 5, 1978, midnight 10.0
S4E12 - The Bank
A man charges a sperm bank with murder after the lab unwittingly destroys the man's last sample.
Jan. 12, 1978, midnight 10.0
S4E13 - The Ghost
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.
Jan. 19, 1978, midnight 10.0
S4E14 - Appendicitis
Yemana is hospitalized with appendicitis; the cage is a stopping-off place for a sugar addict and an aging bounty hunter.
Jan. 26, 1978, midnight 9.0
S4E15 - Rape
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.
Feb. 2, 1978, midnight 10.0
S4E16 - Eviction (1)
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.
Feb. 9, 1978, midnight 10.0
S4E17 - Eviction (2)
The hotel situation now involves a SWAT team, while Dietrich learns the identity of his amnesic ""girlfriend.""
Feb. 23, 1978, midnight 10.0
S4E18 - Wojo's Problem
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.
March 2, 1978, midnight 10.0
S4E19 - 'Quo Vadis?'
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.
March 23, 1978, midnight 10.0
S4E20 - Hostage
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.
May 4, 1978, midnight 3.0
S4E21 - Evaluation
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.
May 11, 1978, midnight 10.0
S4E22 - The Sighting
A man liquidates all of his assets into gold, much to his wife's dismay; Wojo claims he saw a UFO over Staten Island.
May 18, 1978, midnight 0.0
S4E23 - Inauguration
Harris does some extensive soul searching when he's offered a job on the mayor's security team.
