1x1 - The Thirty-Year Pin

September 23, 1972

When a police officer is fatally shot 3 days before he is due to retire, Stone undertakes a relentless search for the killer.

1x2 - The First Day of Forever

September 30, 1972

Stone and Keller finally get a lead on a serial killer who has been knifing prostitutes when one of the victims survives the attack.

1x3 - 45 Minutes from Home

October 7, 1972

A salesman attending a convention wrongly believes that he is responsible for the death of an attractive female hitchhiker who had lured him to her houseboat.

1x4 - Whose Little Boy Are You?

October 14, 1972

A Vietnam veteran goes AWOL from the army in order to kidnap the son he has never seen.

1x5 - Tower Beyond Tragedy

October 28, 1972

Stone and Keller face off against Gilliam, a wealthy executive who transforms women into his own special image of perfection, then kills them when they inevitably fail to live up to every demented standard of his.

1x6 - Hall of Mirrors

November 4, 1972

Keller, temporarily partnered with a hotshot detective, sets out to discover why his new partner seems to be absolutely convinced of a murder suspect's guilt for no apparent reason.

1x7 - Timelock

November 11, 1972

Stone appears to be the only one willing to give the benefit of the doubt to a convict who is accused of a murder while out of prison on a 36-hour pass.

1x8 - In the Midst of Strangers

November 25, 1972

When a corner newspaper vendor goes after the muggers who stole his life savings, Stone and Keller discover that the crime is linked to the murder of a housing commissioner.

1x9 - The Takers

December 2, 1972

The murders of a flight attendant and a nurse who were rooming together lead Stone and Keller to suspect a jewelry salesman and his wife.

1x10 - The Year of the Locusts

December 9, 1972

In their attempt to bring down a family of con artists who victimize entire neighborhoods, Stone and Keller are aided by dissension among the gang members.

1x11 - The Bullet

December 16, 1972

A college professor, shot accidentally while trying to pay off a blackmailer, refuses to co-operate with Stone's investigation for fear that the publicity will lose him an upcoming promotion.

1x12 - Bitter Wine

December 23, 1972

A man who served 12 years in prison to protect his brother gets out only to find that the brother never told their father, a Greek restaurant owner, the truth about who should have gone to jail.

1x13 - A Trout in the Milk

January 6, 1973

Stone and Keller suspect that an artist's fatal fall from his studio window was not an accident.

1x14 - Deathwatch

January 13, 1973

Two fishermen (Colasanto and Caruso) decide to keep quiet after witnessing a human smuggling ring.

1x15 - Act of Duty

January 18, 1973

After a female detective is killed by the rapist she had been bait for, her roommate (played by Brenda Vaccaro) goes on the warpath to catch him. After Mike Stone kicks her off the case, she continues on her own, hurtling headlong into peril.

1x16 - The Set-Up

January 25, 1973

A retired hit man returns to San Francisco, not knowing that he will be the target of a hit.

1x17 - A Collection of Eagles

February 1, 1973

A murder brings to light a coin dealer's plan to substitute fakes for the rare coins in a collection.

1x18 - A Room With a View

February 8, 1973

One witness in a racketeering trial is killed with a booby-trapped car, and Stone worries that the remaining witness, Roy Chaffee, will be picked off by a hit man if he surfaces.

1x19 - Deadline

February 15, 1973

Stone discovers that a murdered woman was involved with both a famous newspaper reporter and his son.

1x20 - Trail of the Serpent

February 22, 1973

A gang takes Mike Stone hostage after killing a policeman in an attempt to flee from a grocery store robbery. They want to trade Stone in for their leader, Buddy Sims.

1x21 - The House on Hyde Street

March 1, 1973

When a boy disappears after school, suspicion falls on the neighborhood recluse, who is popularly known as a pedophile, although never convicted.

1x22 - Beyond Vengeance

March 8, 1973

After spending a "lousy" 12 years in prison for a brutal sexual assault and murder, a young punk returns to San Francisco to seek revenge against Mike Stone (who was the arresting officer). And he's not picky about how he'll take that revenge -- or on who.

1x23 - The Albatross

March 15, 1973

A father finds out that the man who murdered his deaf son is released on a technicality.

1x24 - Shattered Image

March 22, 1973

Mike Stone has reason to believe that the death of a politician is no accident.

1x25 - The Unicorn

April 5, 1973

A priest (Fr. Scarne) won't tell Stone where a murderer (Abel Hoffman) is hiding. Stakes are raised by drug smugglers looking for a stolen shipment of heroin.

1x26 - Legion of the Lost

April 12, 1973

Stone goes undercover as a bum to investigate the beating death of three homeless men.

Karl Malden

Mike Stone

Michael Douglas

Steve Keller

Richard Hatch

Dan Robbins