Season 4

01 The Sentinels Episode 114th September 1971 While searching for a pair of murderers, the trio uncovers a link between murder, a stolen car and a threatened epidemic. 02 Cricket Episode 221st September 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. 03 Home Is the Streets Episode 328th September 1971 A former addict helps the trio catch a cop killer - her own stepfather. 04 Survival Episode 45th October 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. 05 Color of Laughter, Color of Tears Episode 512th October 1971 A circus owner asks the trio for help in finding out who's committed sabotage and murder in the big top. 06 The Medicine Men Episode 619th October 1971 Julie is drawn into a bittersweet romance and blackmail. 07 The Sands of Anger Episode 726th October 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. 08 The Poisoned Mind Episode 82nd November 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. 09 Exit the Closer Episode 99th November 1971 The trio helps a used-car salesman who's made a deal with the devil. 10 Whatever Happened to Linc Hayes? Episode 1016th November 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. 11 And a Little Child Shall Bleed Them Episode 1123rd November 1971 The trio must protect a TV clown from an assassination attempt. 12 The Loser Episode 1230th November 1971 Someone is out to kill an unfortunate young man. 13 Death of a Nobody Episode 137th December 1971 The trio investigates after an innocent bystander is killed by a speeding car after it narrowly misses Pete. 14 Feet of Clay Episode 1414th December 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. 15 I Am My Brother's Keeper Episode 154th January 1972 Pete is targeted by the very gunman he's tracking down. 16 Deal with the Devil Episode 1611th January 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. 17 Kill Gently, Sweet Jessie Episode 1718th January 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. 18 Shockwave Episode 1825th January 1972 Julie grows attached to a baby that's been abandoned by a couple on a robbery and murder spree. 19 No More Oak Leaves for Ernie Holland Episode 191st February 1972 A Vietnam veteran returns to the police force with questionable ideas of dealing with dissident ghetto residents. 20 The Cave Episode 208th February 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. 21 The Wild Weekend Episode 2115th February 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. 22 The Tangled Web Episode 2222nd February 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. 23 Outside Position Episode 2329th February 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. 24 Big George Episode 247th March 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.