Season 4

September 14, 1971

While searching for a pair of murderers, the trio uncovers a link between murder, a stolen car and a threatened epidemic.

September 21, 1971

Julie and a young boy named Cricket go to the park where Cricket finds a gun dropped by a man he runs into. Cricket then accidentally shoots Julie and, thinking he's killed her, runs away.

September 28, 1971

A former addict helps the trio catch a cop killer - her own stepfather.

October 5, 1971

After Julie picks up a blind hitchhiker, they have a flat tire and flag down a passing car for help. Unfortunately, the people in the car trick them into switching cars and abandon them in the desert.

October 12, 1971

A circus owner asks the trio for help in finding out who's committed sabotage and murder in the big top.

October 19, 1971

Julie is drawn into a bittersweet romance and blackmail.

October 26, 1971

Julie, Linc and Pete attend a dune buggy race where a pickup truck blows up, killing a young man Julie had just met. The trio then investigate the incident, suspecting foul play.

November 2, 1971

After Captain Greer shoots and kills a young man in self defense during a bust, he suffers from feelings of guilt and remorse. Julie suggests he take a vacation at a secluded resort to sort things out.

November 9, 1971

The trio helps a used-car salesman who's made a deal with the devil.

November 16, 1971

On his way to the liquor store, Linc is mugged and hit over the head. When he comes to, he wanders around in a daze, unable to remember who he is or what he was doing.

November 23, 1971

The trio must protect a TV clown from an assassination attempt.

November 30, 1971

Someone is out to kill an unfortunate young man.

December 7, 1971

The trio investigates after an innocent bystander is killed by a speeding car after it narrowly misses Pete.

December 14, 1971

The Trio help a young deaf-mute save a guard from a warehouse fire. Linc then gets involved with helping the young-deaf mute who is targeted for assassination.

January 4, 1972

Pete is targeted by the very gunman he's tracking down.

January 11, 1972

Pete is contacted by his old friend Rusty Bryson, a war correspondent whom he knew and idolized as a boy. But the Treasury department is looking for Bryson, who it suspects of smuggling drugs from Vietnam.

January 18, 1972

The trio and Greer know that a paroled killer plans to get revenge on Pete, but Pete has no idea why the man is out to get him.

January 25, 1972

Julie grows attached to a baby that's been abandoned by a couple on a robbery and murder spree.

February 1, 1972

A Vietnam veteran returns to the police force with questionable ideas of dealing with dissident ghetto residents.

February 8, 1972

Julie, Link and Pete break down in the desert during a sandstorm and seek shelter in an abandoned mine. An old man embittered by the death of his son in the war who hates hippies then sets off dynamite and traps the trio inside.

February 15, 1972

When Pete runs into an old girlfriend, she invites him to her birthday party but he turns her down, only to be kidnapped by her two friends and forced to attend the party.

February 22, 1972

Pete and Linc come close to breaking the law as they attempt to help a parolee, an old friend of Julie's, return stolen jewelry.

February 29, 1972

A stable boy's employer frames him for possessing drugs and continues conspiring against him after his parole, all in order to stop the young man's romance with his daughter.

March 7, 1972

A man happens to witness the murder of a sales clerk and agrees to testify at the trial. As a result he and his family are relentlessly terrorized by someone, even after the trial has ended.