Episode 1
Keller returns fire during a chase in a dark shopping center, killing a kid, but the body comes up unarmed. The boy's father insists Keller is a murderer.
Episode 2
One of the girlfriends of a young charmer recognizes her boyfriend as the man who stuck up her bank.
Episode 3
In order to stop a psychotic priest-killer, Stone goes undercover as a Roman Catholic priest. The victims were all clergymen who studied at the same seminary.
Episode 4
A cop (Nielsen) who finds out that he has a terminal illness, sets out to kill a racketeer (Danton) who had been his quarry for the last year and a half.
Episode 5
A small-time crook accidentally heists a fantastic sum from a small store that is actually a Syndicate front.
Episode 6
Lieutenant Stone and Inspector Keller go after two insurance agents involved in the counterfeiting of an 1850 2-cent purple Guyana stamp which had a value of $250,000.
Episode 7
A flute-playing "Pied Piper" (played by Ricky Nelson) talks teenage girls into prostitution, then disposes of them when they are no longer convenient. Stone's daughter helps him break up this murderous prostitution ring.
Episode 8
A black police informant is murdered, but the police seem more concerned with the death of a white business man. His flinty daughter forces the police to go after his killers.
Episode 9
Crooks heist a truck filled with gold, not knowing that the gold is the irradiated byproduct of a power plant experiment and extremely toxic.
Episode 10
Internal affairs suspects that something is amiss when a witness under police protection is killed. Someone in the Department is a Syndicate informer--and everyone is under suspicion, even Stone and Keller.
Episode 11
A trio of violent prison escapees leaves a trail of blood by murdering or crippling everyone they see.
Episode 12
The oldest of a set of three young sibling runaways is suspected of the murder of a drugstore owner. His animosity towards authority doesn't do him any favors.
Episode 13
Angered by the rising cost of health care, an old man tries to pay his friend's bills by threatening a businessman with the bombing of his buildings.
Episode 14
Believing her baby was kidnapped, not stillborn as people claim, a deranged new mother embarks on a murderous quest to find the truth.
Episode 15
An undercover cop is murdered with Stone's gun, and a hotshot young inspector seems determined to pin the rap on Stone.
Episode 16
Stone and Keller work to crack a kidnap case where the mother is friends with an alleged psychic.
Episode 17
A woman who has dedicated her life to a prominent family fails to see her neglected son has fallen in with a psycho—and may have helped him kill a woman.
Episode 18
A philandering professor is killed and his mistress shot by a sniper who has been terrorizing a college campus.
Episode 19
Keller goes undercover as an ex-con musician to bust a crooked parole officer and his ring of parolees.
Episode 20
Stone looks for the arsonists who set a fire that killed two firemen.
Episode 21
A cowboy was trampled to death by a bull; his mates suspected it to be murder.
Episode 22
A team of angry fathers, who are fed up with crime in their neighborhood, take a vigilante approach at solving the problem. During one of their rampages, a police informant is killed.
Episode 23
San Francisco's social elite are suspects when a publisher who blackmailed them is found murdered.
