Episode 1
Aired Sep 12, 1974
One Last Shot
When a police officer is accidentally killed, it is discovered that his partner may have been drunk at the time of the shooting.
Details
Episode 2
Aired Sep 19, 1974
The Most Deadly Species
Keller unwittingly leaks information to his neighbor (Brenda Vaccaro), a professional killer; guest Barry Sullivan.
Details
Episode 3
Aired Sep 26, 1974
Target: Red
A former CIA agent and a retired Army general conspire to kill a top Chinese delegate; guest Bill Bixby.
Details
Episode 4
Aired Oct 3, 1974
Mask of Death
A female impersonator discovers that his female alter ego is a ruthless killer who is taking control of him.
Details
Episode 5
Aired Oct 10, 1974
I Ain't Marchin' Anymore
Keller poses as a draft evader and infiltrates a group to investigate the murder of a deserter; guest Don Stroud.
Details
Episode 6
Aired Oct 17, 1974
One Chance to Live
A woman harassed by a troubled man conceals information that could save her life; guest Joanne Linville.
Details
Episode 7
Aired Oct 24, 1974
Jacob's Boy
An investigation clears a man of murder, but also uncovers a crime from his past; guests Brock Peters, Dabney Coleman.
Details
Episode 8
Aired Oct 31, 1974
Flags of Terror
Three revolutionaries, caught in the act of smuggling bombs, take Keller and others as hostages; guest Carl Franklin.
Details
Episode 9
Aired Nov 7, 1974
Cry Help
Keller and Stone investigate a case of child abuse that leads to murder; guests Mariette Hartley, Clint Howard.
Details
Episode 10
Aired Nov 14, 1974
For Good or Evil
A boy who saw the slaying of a mob chief is torn between telling Stone and joining the syndicate; guest Mike Evans.
Details
Episode 11
Aired Nov 21, 1974
Bird of Prey
Stone and Keller go to an airbase to look into the murder of a woman by a uniformed man; guest Dennis Cole.
Details
Episode 12
Aired Dec 5, 1974
License to Kill
Stone's loyalty to an old friend could be fatal to the detective when the man seeks revenge against his son's killers.
Details
Episode 13
Aired Dec 12, 1974
The Twenty-Five Caliber Plague
A handgun affects the lives of many different people during a 24-hour period; guests Lee H. Montgomery, Anthony Geary.
Details
Episode 14
Aired Dec 19, 1974
Mister Nobody
To protect a friend's grandson, an elderly cobbler (Sam Jaffe) confesses to a murder he witnessed.
Details
Episode 15
Aired Jan 9, 1975
False Witness
An overly zealous officer plants evidence to ensure the arrest of a drug dealer.
Details
Episode 16
Aired Jan 16, 1975
Letters From the Grave
A wall of Alcatraz Prison crumbles, revealing the victim of a 20-year-old murder; guests Peter Strauss, William Windom.
Details
Episode 17
Aired Jan 23, 1975
Endgame
His daughter nearly causes him to walk into a trap, but, with Keller's help, Stone apprehends the men he is after.
Details
Episode 18
Aired Jan 30, 1975
Ten Dollar Murder
The taxi-robbing spree conducted by a pair of high-school students results in the death of an undercover officer.
Details
Episode 19
Aired Feb 6, 1975
The Programming of Charlie Blake
A psychiatrist uses hypnosis to shift guilt for his wife's murder onto a patient; guests Sharon Acker, Dean Stockwell.
Details
Episode 20
Aired Feb 13, 1975
River of Fear
A bridegroom returning from a Hawaiian honeymoon secretly plots his wife's murder; guests Peter Haskell, Kim Richards.
Details
Episode 21
Aired Feb 20, 1975
Asylum
Keller goes under cover as a patient in a mental hospital where questionable deaths have occurred; guest James Olson.
Details
Episode 22
Aired Feb 27, 1975
Labyrinth
Keller and Stone spearhead an unusual manhunt through the corridors of one of San Francisco's great hotels.
Details
Episode 23
Aired Mar 13, 1975
Solitaire
Stone works in a drug investigation with an undercover officer (Tony Lo Bianco) who is a loner.
Details