The origin of the Mod Squad: After one of Greer's undercover associates was murdered at a psychedelic nightclub, he puts his newly-formed undercover squad of young adults, all previously in trouble with the law, to work investigating, which the evidence suggests was the work of young people. Produced as a 90-minute pilot (73 minutes without commercials), this episode was edited for a 60-minute slot. Guest stars: Brooke Bundy, Lonny Chapman, Noam Pitlik, and Robert DoQui. Uncredited cameos by Harrison Ford and Richard Pryor.

Following the death of a high school teacher, the Squad work undercover at her school to investigate a juvenile car theft ring, and the circumstances that led to the teacher's death. Guest stars: Booker Bradshaw, Judy Pace, J. Pat O'Malley, and Norman Alden.

The Squad work with a wily ex-con on a big counterfeiting caper, in which real money destined for the treasury is swapped with not only counterfeit money, but also a counterfeit Volkswagen Bus used to transport it. Guest stars: Henry Jones, Byron Morrow, Paul Sorensen, Pepper Martin, and Val Avery.

Returning Vietnam veteran Smitty, being sought by police on a homicide charge, turns to his boyhood friend Linc for help proving his innocence. Guest stars: Louis Gossett Jr., Art Lewis, and Edward Faulkner.

Julie serves as a decoy as the Mod Squad attempts to sting a computer-dating service operating in blackmail. Guest stars: Linda Marsh, Julie Adams, Mark Goddard, Byron Foulger, Harry Basch, and Art Metrano.

A probation officer (Robert Lansing) with an eye for Julie joins the Squad in its search for a young photographer accused of murder. Harry Townes and Rex Holman guest star.

The Squad tries desperately to track down a dying girl on the run who may unwittingly spark a meningitis epidemic. The girl is also wanted by the Mafia as she witnessed a mob killing in New York City before she fled to California. Guest stars: Yvonne Craig, Della Reese, John van Dreelen, Mills Watson, Peter Leeds, and Sid Melton.

Greer is the target of an unknown assailant who has rigged a number of "close calls" to intimidate him. Guest stars: James Best, Gail Kobe, Richard Bakalyan, Herb Vigran, and Harry Basch.

Pete, Linc and Julie go undercover as vacationers in a rural trailer camp to investigate the death of a narcotics informant. Guest stars: James Gregory, Ahna Capri, Dub Taylor, Irene Hervey, and Bruce Glover.

Pete's beloved cousin Karen (Diana Ewing) turns to crime in a desperate attempt to win the attention of her wealthy parents, made worse when she kidnapped her baby sister. Guest stars: Nina Foch, Arthur Franz, and Isabel Sanford.

With Pete and Linc close by, Julie poses as a Hollywood starlet to lure into the open a serial assailant preying upon young actresses. Guest stars: Richard Evans, Joan Van Ark, William Smithers, Alan Oppenheimer, Ben Wright, Virginia Gregg, and Norman Grabowski.

Pete, Linc and Julie go undercover as hippies to investigate the bombing of The Guru, an underground newspaper. Guest stars: Dabney Coleman, Jane Elliot, Max Julien, and Adam Roarke. (Uncredited appearance by a pre-Brady Bunch Barry Williams as a newspaper boy.)

Linc joins an automobile thrill circus in Las Vegas to investigate the death of a stunt-driver friend.

Julie's mother, a former prostitute, arrives in Los Angeles to introduce Julie to the man she plans to marry: a bank robber under investigation by Pete and Linc.

While transporting a prisoner by commercial airline, Pete, Linc and Greer face death in a forced plane crash, brought on by the prisoner's foes on the ground.

Investigating a policeman's death, Pete and Linc infiltrate a gang of thieves, only to find the gang has kidnapped Julie.

The Squad works a rodeo undercover to protect a TV cowboy star whose life has been threatened.

The Squad moves into a blind woman's home, posing as houseguests, to offer protection against a mysterious assailant. Guest starred Gloria Foster (wife of star Clarence Williams III).

The Squad searches for Greer, who has disappeared while vacationing in a little desert town, only to find the townspeople not particularly helpful. Guest stars: Jason Evers, Cliff Osmond, and Louis Gossett Jr.

The Squad tangles with a wealthy arch-conservative who is forming a private militia armed with stolen guns.

Pete, romantically involved with a girl whose father (Tom Bosley) is in prison for robbery, faces a dilemma after finding himself behind bars after finding the stolen cash.

After a mother died in a car bomb after losing her baby in an adoption scam, Julie poses as an unwed expectant mother to get deeper inside an extortion racket that blackmails parents of adopted babies. Guest stars: Ida Lupino and Daniel J. Travanti.

The Squad is assigned to protect the life of a black priest (Sammy Davis Jr.), who was defrocked for his liberal views on society, before being threatened by a murderer (Robert Duvall) who is afraid he will break his seal of confession. William Schallert also guest starred.

The Squad get undercover jobs in a hospital to block narcotics theft; the hospital's head nurse was desperate to not get involved, while an orderly involved in the theft is estranged from his dying father at the same hospital.

Linc and Pete go undercover as prison inmates to protect the life of a convicted draft dodger.

The Squad is split up and assigned to separate charter vacation buses in an attempt to catch a bus station killer.

The Squad works with a psychic (Cesare Danova) in finding the whereabouts of a woman who did not show up for night school, but later discovered to be kidnapped in relation to an illegal abortion.

The Squad "adopts" a 9-year-old Mexican waif who has been abandoned by a gang of American thieves.

Greer falls in love with an attractive widow, unwittingly making her the kidnapping target of a narcotics gang.

Pete finds himself framed for murder after he helps a young woman who claims to be in trouble. Guest stars include Richard Anderson.

While pursuing a driver's license renewal at the DMV, Linc falls in love with one of its inspectors: an attractive young woman. However, their romance is threatened when a man from her past turns up: her ex-husband who seeks to reconcile their relationship.

The Squad is called in to protect a successful woman writer (Carolyn Jones) with a split personality whose life has been threatened.

During the student strike at a local university to demand changes in a school policy, a black student is found murdered on campus, with the police claiming that one of the students murdered him. The Squad is called in to investigate, though they fear that the strike would turn into a riot if the suspect was not brought forward. Guest stars include Richard Pryor.

Pete befriends a young man from Appalachia (Joe Don Baker) caught in a vending machine robbery after learning that the suspect is illiterate. Daniel J. Travanti also guest starred.

The Squad works undercover at a country-western bar as they investigate the death of a fading country-western singer. Guest stars include Tyne Daly.

The Squad poses as college students at a prestigious college, investigating a mysterious death of a young fraternity pledge, and possible ties to a rich donor (Don DeFore) and his aspiring football quarterback son.

The Squad investigate the activities of a quack after one of his patients dies of mysterious circumstances, while another dies of a hit-and-run accident during the funeral service.

After television mechanic Sol Alpert (introduced the previous season in "Flight Five Doesn't Answer", played by Marvin Kaplan) was being wrongfully blamed for slum-like conditions at neighborhood apartments, Pete, Linc and Julie try to find the landlord responsible - which turned out to be Sol's cousin (Noam Pitlik). With the police helpless in this case, as the Squad know about the Alperts' Jewish faith, they get help from a higher authority. Henry Silva also guest starred.

The Squad tries to gain the confidence of the top con man in the business and catch him by becoming involved in a caper.

After a young man helps Pete when he is attacked by hoodlums, Pete learns the man's father may be plotting a serious crime. Guest stars: Marj Dusay, Nehemiah Persoff, and Jay Novello.

An embittered handyman who claims to be related to Billy the Kid kidnaps Julie, thinking that she was a socialite friend of hers, but threatens her life when he realizes his mistake.

Assigned to find Chief Metcalf's daughter after she disappears, the Squad's investigation leads to a pop singing idol - and to a life controlled by drugs.

A sleepy Mexican town becomes a prison for Pete and Linc, captured by a savage motorcycle gang. The bikers center their terror tactics on the townspeople as they try to learn who killed two members of their gang.

Julie falls in love with an exchange student, not knowing he is a Middle Eastern prince, and an heir to the throne in a country embroiled in a civil war.

A founder of a halfway house for drug addicts (Sammy Davis Jr.) is wrongfully accused of statutory rape of a minor. Pete and Linc work undercover as tenants to find the person who framed him.

Pete's old eccentric classmate (Richard Dreyfuss) confessed to the Squad of murdering his girlfriend - and also has the pictures to prove it - yet he refused to tell Greer anything. He later divulged plans to give his mother (Lee Grant) the same photo finish. (In 1997, TV Guide ranked this episode #95 on its list of the 100 Greatest Episodes.)^[1]

A nun returns home, only to witness her father murdering one of his associates as a mob hit. He must decide whether to spare his daughter, or kill her to appease his underworld superiors.

In a sequel to The Teeth of the Barracuda, as the Squad celebrate their second anniversary together, Pete contemplates leaving the Squad to join his father in his family's business, until an ex-convict related to their first case shot Linc in an act of revenge. A clip show, including clips from Barracuda, plus My, What a Pretty Bus, Flight Five Doesn't Answer, The Sunday Drivers, The Death of Wild Bill Hannachek, and The King of Empty Cups. (Florence Halop appears as a nurse.)

In a sequel to A Hint of Darkness, a Hint of Light, Linc's blind friend announced that she was engaged to a doctor. What she didn't know was that the "doctor" was actually a career impostor, complicated by the fact that he was targeted by a man for malpractice committed by the real doctor. Gloria Foster reprises her role as the blind woman.

Pete's mother re-enters her son's life when the Squad investigates one of her friends: a chemical company executive who was mentally ill.

Posing as production personnel at a movie studio, the Squad probes a series of mishaps tied to a film about a cold case involving a 1948 string of murders, with an ending that someone didn't want filmed. Guest stars: Frank Converse and Ed Asner.

The Squad investigates a hit-and-run accident involving a stolen car when a young suspect (David Cassidy) pleads his innocence; he would later be released on bail by a mysterious figure. Meanwhile, an election candidate is a victim of blackmail related to the case, saying he would tell the truth about the hit-and-run unless he pays. Guest stars include Marion Ross.

Pete falls in love with a young woman he has injured in an auto chase involving a robbery suspect, only to learn she is the sister of the suspect.

The Squad investigate a motorcycling and skydiving group following the death of a wino who died when he failed to pull his ripcord during a group skydiving expedition, while intoxicated. The parents of one of their members, a daughter of an upper-class couple, are also concerned that she was mixing up with the wrong crowd. Guest stars include Lane Bradbury.

Linc feigns insanity to get into an institution to investigate the death of a friend there, finding out that one of the doctors there used electroconvulsive therapy as a method of punishment.

The Squad investigates when a school teacher, under attack for her views on sex education, becomes the target of violence during the political campaign of a politician who used the abolition of sex education as its platform.

Linc works undercover as an assistant to his childhood friend, movie star Willie Rush (Sammy Davis, Jr.), after an attempt on his life with an ill-timed car bomb on the movie set. But concerning Linc more was Willie's cavalier lifestyle and attitude, created in part due to Willie's fear that he may have Huntington's disease.

An army officer, a former police detective, took a leave from the Vietnam War to volunteer himself to assist Greer and the Squad in the investigation of the death of his brother. While Greer suspected that an undercover cop was doubling as a drug pusher, the officer mistakenly suspected that Pete was that crooked cop.

Linc befriends an 8-year-old diabetic boy whose young mother was just released from jail after being involved with liquor hijackers. With his mother still indecisive on whether or not to resume parenting him, and the deadline to make a decision nears, the child's future hangs in the balance.

Pete and the Squad try to clear an Apache (Henry Silva) falsely accused of murdering a man in a small desert town.

The Squad investigates the mysterious death of a soldier who fails to return from Vietnam.

Julie becomes involved with a mysterious stranger (Vincent Price), a movie actor believed to have died twenty years earlier.

Pete makes friends with an autistic teenage boy, who was "17, going on 12" - he was the prime suspect in the murder of his father, an ROTC captain.

A man on the run, with the son he doesn't have legal custody of, kidnaps Julie. However, as both have Rocky Mountain spotted fever, she is more concerned for their lives than hers.

Following a death of an immigration agent at a car wash where an undocumented immigrant (and a friend of Pete's) work, the Squad finds a cop involved in the illegal entry of Mexican youths across the border - all tied to a village in Sonora. The officer and Greer are at odds on how to handle the case.

An attention-starved misfit gunman (Bob Balaban) hell-bent on starting a "war" with the establishment infiltrates a student protest with Julie trapped as one of the hostages. Also among the hostages is her humanities teacher (Josephine Hutchinson) who has a heart condition but left her medication in her car.

The Squad investigates a unique nuisance racket headed by a man who turns out to be a close friend of Greer (Jack Cassidy). Features a special appearance by Danny Thomas as himself.

The Squad investigates a 40-year-old man (Carl Betz) who tries the hippie life to recapture his youth after he was implicated in a murder. Meanwhile, his daughter, whom he lost sight of following a divorce, was in town in hopes of reuniting. Guest stars include Daniel J. Travanti.

A car belonging to a businessman's associate has been stolen. However, the investigation becomes dire after Greer learns that that car was rigged with dynamite, as the businessman wanted to commit murder. The Squad rush to find the car before the dynamite explodes at 5 p.m., potentially killing an innocent family who rented it.

The Squad helps a minister find out who murdered his brother, a psychologist who ran a clinic for troubled youngsters. Besides differing ideologies, complicating matters was that the clinic was used to hold stolen goods before they are fenced. (Note: The clinic was previously featured briefly a couple of episodes earlier in "A Bummer for R.J." Also, an exterior scene took place at Walt Whitman High School, a fictional high school used as a setting for an ABC sitcom at the time, Room 222.)

The Squad helps an overzealous detective get the goods on a known dope pusher, but the pusher swears he's been framed.

After an undercover agent was killed in a pedestrian accident unrelated to her case, Julie assumes her identity to expose the leader of a narcotics ring (Ray Walston).

The Squad tries to find the father of a 15-year-old farm boy and learns that the man is involved in a loan shark racket.

The Squad helps the son of an aging ex-boxing champ (Sugar Ray Robinson) who is being harassed by gamblers for inside information on his dad's return to the ring after an 11-year absence. (Featuring sports announcer Dick Enberg as himself.)

Pete poses as a safecracker in order to break up an industrial espionage plot and in the process stumbles onto a murder - as well as the young son of a businessman who is overeager in learning the art of safecracking. Guest stars include René Auberjonois.

On vacation, Linc stumbles onto the kidnapping of a young boy in a desert ghost-town and finds himself held hostage as well.

After a botched payroll robbery led to a shooting death, the Squad searches the city for a stolen car that harbored a flock of pigeons which could cause an encephalitis epidemic.

An autistic and withdrawn boy who has accidentally shot Julie is sought by the Squad in order to save him from a murderer. (Note: This episode was remade as the Charlie's Angels season one episode To Kill an Angel.)

The Squad pursues a dope pusher on the run for shooting two policemen.

Julie, suffering a snake bite, is left stranded in the desert with a blind man (John Rubinstein) on a mysterious mission when three young hoodlums steal her car.

The Squad investigates a circus carnival that is being sabotaged before its opening day. The circus' owner, Joe Walton (Ed Asner), vows the show will go on, despite it being in more danger of additional accidents.

Julie falls in love with a young doctor who is being blackmailed by one of his fellow students from medical school.

The Squad investigates a mysterious explosion that kills a driver at a dune-buggy rally in the desert. Guest stars include Shelly Novack and Tony Dow.

Depressed after having shot a young man during a burglary, Greer takes time off to recover. However, while on vacation, he found himself poisoned by a slow-acting poison that could kill him, leading to the Squad to go on a race against time to find the criminal. Guest stars include Laraine Stephens, Jean Byron, and Wesley Lau.

The Squad go undercover to investigate an irreputable used car dealer (Larry Blyden). However, after attempts to murder him, they found out that a mob ring owns the lot, and the "owner" was, in reality, a pawn used for cover. Guest stars include Ruta Lee.

Suffering from amnesia after getting mugged, Linc wanders Skid Row, unsure as to whether or not he is the escaped mental patient he reads about in a newspaper. The second clip show of the series, which includes flashbacks to previous episodes Bad Man on Campus, My, What a Pretty Bus, and Who Are the Keepers, Who Are the Inmates?

The Squad tries to protect a TV clown (Milton Berle) whose life is in danger.

The Squad defends a drug dealer (Martin Sheen), whose daughter is a sick child in need of medical care; his associate has marked him for murder. Guest stars include Harold Gould.

A woman is killed by a hit-and-run driver, but Pete is sure he was the intended victim.

Linc befriends a deaf-mute (Desi Arnaz, Jr.) who becomes a reluctant hero after saving a guard's life in a warehouse fire. But his status of being a "hero" comes into question after a second guard was discovered in the charred ruins - dead.

Pete was struck by a hit-and-run driver while undercover as a union member to gather information from an informant - who was shot and killed by the same guys. Hospitalized with a brain injury that may prove fatal if untreated, Pete is adamant on finishing his assignment. The rest of the Squad race to find Pete before his brain injury - or the mobsters - kills him first.

A gonzo journalist (Leslie Nielsen), who was Pete's older friend of his in his childhood, returned from a reporting stint in Vietnam with information about the war - and a suitcase full of heroin, which gone missing. Pete and the Squad need to find the heroin before the journalist finds it, or his foes find him.

A man convicted of manslaughter is released on parole, vowing to find and kill Pete, who he mistakenly believes was responsible for a savage beating he suffered years earlier.

Julie becomes emotionally attached to an abandoned baby whose parents are terrorizing the area with armed robberies.

Ernie Holland (Robert Pine), a plainclothes cop fresh from his tour of duty in the Vietnam War, assists the Squad in finding a stolen cache of guns. However, his military-style method of operation clashes with the Squad's more diplomatic approach as they deal with an idealistic protest group leader (Henry Silva).

Pete, Linc and Julie are trapped in a cave by a crazed man who holds them responsible for his son's death in Vietnam.

Pete is kidnapped and almost killed by the jealous boyfriend of his former fiancée.

Pete and Linc jeopardize their lives and careers by helping Julie's friend return the jewelry he has stolen.

Pete tries to help an ex-convict (Bobby Sherman) who has been framed on a narcotics charge.

The family of a man (Andy Griffith) who witnessed a murder entered a living hell after receiving death threats, which led to their neighbors shunning them as if they were pariahs. The Squad comes to their aid as they search for the man who desired to avenge his partner's arrest and prosecution.

When Greer is seriously hurt by three phony cops (one of these a drug dealer whom Greer had previously apprehended), and four suitcases of heroin belonging to a crime syndicate are stolen, Sgt. Ed Lassiter (Ed Asner) leads the Squad on their most challenging assignment ever, looking at every possible connection. One of these is a jazz trumpeter (Richard Pryor) who was marked for death. The other a mother who's a heroin addict, who was due to give birth to another child. First half of a two-hour special. Guest stars include Robert Reed, Cesar Romero, Barbara McNair, Cleavon Little, Stefanie Powers, and Gene Washington (of the San Francisco 49ers).

Second half of the two-hour special: three of the suspects were found dead, one of them with a clue that could lead to the stolen heroin. Also, Pete and Julie risk their lives gathering evidence of the syndicate's plan of distributing the heroin while attending an upscale party of one of its henchmen. And Sgt. Lassiter harbors a dark secret that would not only affect his career, but also his future. (Episode ends with Michael Cole in a voice-over afterward, urging mothers with a drug problem to seek help.)

The Squad investigates when a youth (Bobby Sherman) joins a motorcycle gang, plots a fake payroll robbery of his father's company, and learns the other gang members are playing it for real.

The Squad witnesses a shoplifting by a badly scarred woman and arranges plastic surgery, believing it would prevent her from a life of crime. However, her partner in crime is counting on her to join him in holding up a bank. Guest stars include Jo Ann Harris, Robert Pine, and Ivor Francis.

Linc's friend is kidnapped after receiving a fur coat as a gift, setting the Squad on a chase of a fur-theft ring. Guest stars include Paul Richards and Bo Svenson.

The Squad finds a missing ex-soldier working as a longshoreman, but because of mysterious circumstances they question his identity.

The brother of a fur thief attempts to kill Pete, holding him responsible for his brother's death. Meanwhile, a blind childhood friend of Pete's returns home for an operation that would give her the ability to see, though her surgeon fears the positive results may not be permanent.

A police lieutenant (and longtime friend of Greer) accidentally kills his accomplice in a jewel theft ring. Desiring to cover his tracks, he planted evidence implicating Pete, working on a related case, as a murderer. Greer, however, was skeptical on the authenticity of the evidence, leading to him, Linc and Julie to dig deeper. (Guest stars include Tyne Daly.)

When Greer is framed as being on the take, the Squad begins an investigation to clear his name. Complicating things is a boy who became handicapped after being injured by Greer a few years earlier during a shootout.

The Squad's investigation turns up a radio disc jockey (Louis Gossett Jr.) who was an unwitting helper of an auto-theft ring when his commercial indicated where stolen cars could be picked up. Guest stars include Henry Silva.

A con man (Clu Gulager) poses as a U.S. marshal to steal $600 from an elderly liquor store owner (Zara Cully). When Linc found out that she was taken in, Pete and Julie assume the roles of a wealthy young couple to lure the bad guy.

A group of students with genius IQs at a prestigious university pull off a series of bizarre headline-making robberies. But when a security guard dies of a heart attack during a heist, they expanded their activity list to include murder.

When a Korean girl witnessed a hit man (Vic Tayback) murdering a passport forger, the Squad comes to her aid. Immigration officials were also looking for her, as she overstayed on her visa while looking for her long lost father.

The Squad protects a former child star, upon whose life attempts were made when she became eligible for money held in trust for her. Guest stars include Catherine Burns, Bob Balaban, Ruth Roman, Dane Clark, and John Karlen.

On Christmas Eve, a 5-year-old girl is left in Pete's care by her father (Michael Anderson, Jr.) who then disappears.

Julie goes into hiding at a local hospital after posing as a secretary to a crime lord (Victor Buono) to collect evidence to present to the grand jury. After finding out where she was, he blackmails a doctor into giving her special treatments that could alter her testimony, or even kill her.

A pair of loan sharks murdered a restaurant owner over a loan, and are out looking for its two witnesses - one an injured Vietnam vet whose their "customer", and his friend, Linc.

A stepfather of a little boy confesses to beating him; however, the Squad speculates he was covering for the boy's mentally-ill mother.

After Linc's Hispanic friend is accused of the murder of his co-worker at a construction site, Linc goes undercover as a worker, only to find that corporate executives - and trouble - also roam the sites. Guest stars include Jim Backus.

A nurse stealing morphine for her addict son indirectly led to the death of a terminally-ill cancer patient, creating undue strife for her husband.

Pete and Linc witness a kidnapping of a son of a newspaper publisher, but his father refuses to report the abduction to the police. After Greer and the Squad got involved, it was revealed that an ex-servant of the publisher was involved.

Convalescing in the home of a doctor and his wife, Julie is terrorized by a man who vows to kill everyone in the house.

Greer's Greek uncle comes to pay a visit, not realizing that he was behind a series of thefts of Cézanne's masterpieces.

The Squad helps prevent a $1 million heist masterminded by an ex-con whose pregnant wife may be positive for cervical cancer. Just as important as foiling the crime is letting her know that she might have the cancer. (The Squad presumably broke up some time after this episode's subject case, as its members would not rejoin forces again for another six years.)

Six years after the last known case, Pete, Linc and Julie are called back to team up again after several attempts are made on the life of Adam Greer, their former commander, now a Deputy Chief in the LAPD and on the verge of retiring. However, they soon discover that the attempts on Greer's life were a ruse to draw them out, and that they themselves are the real targets of the would-be killer.