Brad Turner, a young black man who is an old friend of Peggy's, shows up at her door one night with his friend Jimmy Whitewing, who is part Indian. They were in a liquor store when it was held up, with Jimmy getting wounded during the incident, making it look like Brad and Jimmy committed the robbery. Peggy performs first aid on Jimmy, but also calls Joe Mannix. When Mannix tries to convince them to go to the police, however, they flee. Mannix nevertheless decides to investigate the matter, hoping to exonerate them. Written by aldanoli

Corey Boone, a private detective and a mentor to Joe Mannix, dies after being thrown from the window of a penthouse. Suspicion falls on the owner of the penthouse, a shady attorney named Charles Egan, who claims he was out driving around when Boone was killed. His one possible alibi is a young woman with whom he claims to have had a brief encounter in a remote area at the time of Boone's death. But then Egan, who has been charged with Boone's murder, surprises Mannix by asking him to find the missing witness. Written by aldanoli

Jean McBride, an old flame of Joe Mannix' who still lives in his hometown of Summer Grove, appears in his office one evening. Jean is married to Troy McBride, who once quarterbacked the Summer Grove football team on which Mannix also played. But now a double-tragedy has befallen Troy -- he is in an iron lung as a result of an accident, and has also been charged with murder. Mannix accompanies him and Jean back to Summer Grove to assist in the defense of the murder charge -- but his return home also forces Mannix to deal with unresolved conflicts with his father, from whom he has been estranged for many years. Written by aldanoli

Joe Mannix is called by an old friend named Rudy who is an executive with Majestic Studios, about the studio's big star, Mitch Cantrell. Cantrell is both obnoxious and reckless, but Rudy's concern is that someone has been threatening Cantrell's life -- threats that appear to have come true when someone stretched a metal wire across a road in front of Cantrell's motorcycle. When the attempts on Cantrell's life begin to multiply, Mannix tries to convince Cantrell that he needs to take precautions, but Cantrell refuses. Mannix nevertheless stays on at the studio, hoping to find the person behind the threats on Cantrell's life. Written by aldanoli

Benjamin Holland, a former physician, runs a general store in a small town up the coast from Los Angeles. Holland lost his medical license two years earlier when he reported the wrong lab results to a surgeon and then disappeared from the hospital without permission. Now he is being prosecuted for practicing medicine without a license because he administered life-saving treatment to a young boy. His girlfriend, a woman named Andrea, is an old friend of Joe Mannix from their college days, when she was queen of the freshman ball. She believes that the solution to Holland's current troubles is to clear his name in the incident that led to the revocation of his medical license. Despite Holland's refusal to cooperate, Mannix agrees to look into the matter for Andrea. Written by aldanoli

Mannix is visited by a young woman named Celia James, who somewhat reluctantly explains that her uncle recently visited her and left behind a briefcase. When he did not return or contact her as she had anticipated, she opened the briefcase to find that it contained more than $300,000 in cash, as well as lists of names and places. She has barely finished telling him this when three men burst into Mannix' office. They tell Mannix, Peggy, and Celia that they are escaped convicts and want money to aid in making their escape. Their attention soon turns to the two women, however, and they begin to show that they are interested in more than money. Written by aldanoli

Joe Mannix is hired by Ellen Barton, whose husband drowned while swimming toward the dock near the marina where they lived. She is convinced that her husband, a champion swimmer, could not have died accidentally, and that instead he was murdered. As he pursues the investigation, Mannix enlists help from Dave Wright, the marina's security officer, whose life he once saved when Wright was still a police officer. Written by aldanoli

Maggie Wells, the secretary of a private investigator who was murdered, is on her way to see Joe Mannix. The cab driver taking her there fails to follow the route to Mannix' office, and then attempts to shoot her, but she is able to escape. Shaken, she manages to meet with Mannix, and asks him to figure out why someone is trying to kill her. Mannix places her in a trailer in a secluded location, and tries to get her to remember as many details as she can about her late boss, in order to figure out which of his former clients' business dealings might have put her in jeopardy for her life. Written by aldanoli

A husband is driving his wife home after their anniversary celebration when he apparently runs down a man on a darkened street. The couple returns to the scene but can find no evidence of the man they thought they hit. Reluctant to go to the police because the husband had been drinking that night, they hire Mannix to make sure that no one was injured. Mannix approaches the only witness to the incident posing as the driver of the vehicle, but the witness suddenly claims that he saw nothing. Then the mystery deepens as Mannix is visited by two men who accuse him of having been hired to kill the hit-and-run victim. Written by aldanoli

Mannix is hired by a man who was shot at, but not harmed, by a hired killer in an apparent threat of some kind. While shadowing his client into a derelict building, Mannix is shot at by the hit man. The bullet grazes Mannix' temple, causing a bout of psychosomatic blindness. With the help of an ex-Marine friend of police Lt. Tobias, Mannix learns how to survive in the world of blindness, to prepare himself for what he suspects will be hit man's return to finish the job of silencing Mannix. Written by aldanoli

Bradley Everett is the owner of Everett Aviation. He departs one day on a flight to Mexico, and his plane is reported lost off the coast of Baja California. His presumed death has no sooner been reported than a man with a bandaged face and sunglasses walks into Mannix' office -- who turns out to be Everett in disguise, having survived his misadventure at sea. He tells Mannix that the loss of his plane was not an accident, and that his reported death will allow Mannix to investigate who might have had a motive for his murder -- his two business partners, his wife, his mistress, or someone else. Written by aldanoli

Sun and Sky, the horse favored to win the Kentucky Derby and possibly the Triple Crown, is being shipped to Kentucky to participate in the upcoming race. During the flight, however, all four members of the cargo plane's crew are overcome by some kind of drug, though the pilot manages to radio a distress call before losing consciousness. Mannix is hired by the insurance company holding the policy on the missing horse to investigate what happened. His search turns up the missing plane, and all four unconscious men, but not Sun and Sky. Mannix discovers that at least two of the men might have had a motive to steal the horse -- and then receives a confession from the horse's owners that they, too, are having financial problems that would make them suspects as well. Written by aldanoli

Peggy has an old friend named Eve Chancellor, whose husband Jim started on the police force at the same time as Peggy's late husband. Eve is concerned about her son Cap, who has dropped out of school and spends much of his time away from home without accounting for his activities. When he brings a gun home one day, Eve hires Mannix to find Cap and to learn what he is involved in, hoping to help Cap avoid straying into a life of crime. Written by aldanoli

Police uncover evidence they believe indicate that Peggy's late husband was on the take. This devastates Peggy's son, Toby. Joe Mannix, claiming Toby as his client, undertakes an investigation to clear the name of Peggy's husband. Mannix butts heads with an investigator for the department's internal affairs section, who vows to get the detective's license. Mannix also fends off an attempt on his own life as he tries to find out the truth. Written by Bill Koenig

Mannix is about to leave his office to meet a client one night when he receives a telephone call suggesting that he spend the night at home instead. As he exits his office, a shot is fired at him. Mannix manages to meet the client anyway, a secretive executive who claims that a blackmailer is threatening to reveal embarrassing information about his wife. But as the case grows more involved, Mannix' client suddenly denies having hired him, or even knowing who he is. Written by aldanoli

Against his better judgment, Mannix agrees to look into the case of a young man who twice robbed the same pharmacy seeking drugs. The second time, he shot one of the employees, but even though the police had the pharmacy staked out, he managed to escape. The accused man's wife hires Mannix, insisting that her husband was incapable of committing such a crime. Mannix initially finds little to encourage him, but as he delves into the background of the man who was shot, he finds that the police account of what supposedly happened doesn't add up. Written by aldanoli

In a story reminiscent of Rashomon, Mannix is hired by publishing executive George Diamond to locate Diamond's secretary, Winifred Hill. Hill may -- or may not -- have seen Diamond attempt to push his estranged wife, Stella, into the ocean near his beach house. In a panic, Hill goes into hiding. Diamond claims that she misinterpreted what she saw and tells Mannix he simply wants Hill to know the truth. During the course of his investigation, however, Mannix uncovers several different versions of what happened, including two from George Diamond. Then a murder takes place, forcing Mannix to reconsider the truthfulness of his own client. Written by aldanoli

Mannix is hired by a bank to search for Paul Gantry, an Australian sailor who stands to inherit a sizable sum of money. To find him, Mannix goes under cover at the waterfront posing as a sailor looking for any of his shipmates from a recently sunken freighter, the Harlequin, on which Gantry served as one of the crew. As Mannix learns more information about the case, however, he comes to have doubts about whether Gantry really stands to collect the inheritance as his client informed him. Written by aldanoli

Joe Mannix is invited to a party at the home of Phil Graves, with whom he served in the Army during the Korean War. Now Phil is a bank executive married to a wealthy socialite named Kathy. She confides in Joe that there have been three recent attempts on her life, including one that day when someone apparently tampered with the brakes of her car. Joe agrees to look into why someone would have tried to kill her, and pursues the identity of a mysterious Sylvia, when he finds an expensive locket engraved with that name in Kathy Graves' car. Written by aldanoli

Three attempts are made on Mannix' life within a short period of time, and the killers were each offered a substantial sum of money to do the job. Mannix concludes that the only man who hated him enough to put out these contracts on his life was Frank Bauer, whom he captured and helped put in jail for a murder and robbery in Nevada. The only problem: Bauer, who had recently broken out of prison, was killed during his escape. Mannix decides to go to Nevada to find out whether Bauer's brother may be behind the attempts on his life -- and perhaps to find the more than $200,000 still missing from the robbery. Written by aldanoli

A respected doctor at a school for emotionally disturbed children is murdered during the theft of $150,000 in bearer bonds that were to be a donation to the school. Joe Mannix is hired by an insurance company to try to recover the bonds. In the process, he meets one of the doctor's former patients, a nine-year old girl named Dana who lives partly in a fantasy world involving Peter Pan and Wendy. As Mannix gets to know the little girl, however, he begins to suspect that her talk of pirates and bombs might mean she knows something important about the person who killed the doctor to steal the bonds. Written by aldanoli

Wes Tully, a private detective who is a friend of Joe Mannix, is killed by two men who carefully stage his death to look like an accidental drowning. But Tully had confided in Mannix that he might be killed because of a case he was working on, and that his death would be made to look like an accident. Believing that his friend was murdered, Mannix retrieves some important evidence from the case Tully was working on -- but that only prompts the men who killed Tully to threaten Peggy and Toby in order to get that evidence back. Written by aldanoli

A controversial television interviewer telephones a shadowy figure named Harry Armitage for the hot seat segment of his show, accusing Armitage of bribery and influence peddling. As he speaks to Armitage on live television, shots ring out and Armitage is later found dead in his apartment. A woman named Muriel Price is found running from the scene, and her gun is determined to be the murder weapon. Joe Mannix, who had just been hired by Armitage before his death, is then hired by Muriel's twin sister, Valerie, to try to prove that her sister is innocent. Written by aldanoli

A young woman who has entered a county fair competition in a rural community north of Los Angeles disappears, and her wealthy father hires Joe Mannix to look for her. As Mannix begins his investigation, everyone he interviews claims that the woman never arrived in town. Then everyone -- the police, the town council, and even his hotel clerk -- suddenly seem interested only in having Mannix leave town as quickly as possible. Mannix learns, however, that they are all frightened by an extortion plot that involves not only the missing woman, but a threat to every person in the town. Written by aldanoli

Joe Mannix is visited by an old friend, Beverly Miller, a life-long worker in the carnival world, whose dream of owning her own carnival is threatened when there are several attempts on her life. Mannix visits the carnival on a Saturday as Beverly prepares it for its opening day, to see if he can learn whether someone is indeed trying to kill her. He also brings along Peggy and her son Toby, to atone for bringing Peggy into the office on her day off. Mannix finds that many of the carny workers are uncooperative because they deem his presence to be bad luck. And the accidents continue, even with Mannix on the scene. Written by aldanoli