Sat, Jan 4, 1969
A jeweler whose shop is located near Mannix' detective agency is murdered, and in the crowd outside the murder scene, Mannix runs into Bill Chase, a buddy from his days in the Korean War. Chase tells Mannix he's in trouble and asks Mannix to visit the small mountain town where he serves as a fire ranger so he can tell Mannix about his situation. Within a short time of his arrival in the town, however, Mannix finds a deepening mystery, as he's shot at, injured falling down a hill, and learns that the woman who claims to be Chase's wife is a completely different woman.
Sat, Jan 11, 1969
A woman enters an apartment, is attacked and then thrown over a balcony to her death. The police conclude it is suicide, thanks in part to a phony suicide note. Friends of the woman's family hire Mannix to prove it's really a murder case so the woman can be buried in accordance with her faith. Despite his own doubts, Mannix becomes convinced it is a murder case. Yet the woman's father doesn't want the detective to pursue the case and then his clients abruptly terminate his services. Mannix, however, is determined to pursue the case.
Sat, Jan 25, 1969
Mannix narrowly avoids being shot by a businessman who appears to be a solid citizen. The attacker claims this is due to dreams he is having based on his Korean War experiences. The businessman later freaks out when police approach his house. Mannix has begun to talk him down when the businessman is shot from outside. But the police didn't fire. Mannix continues his investigation and a student at UCLA, the daughter of a company the businessman knew in Korea, is the detective's main lead to finding the truth.
Sat, Feb 1, 1969
A young woman's body washes ashore as the episode opens, and Mannix later recognizes her as the former consort of a slippery attorney who once had Mannix' private investigator license suspended. Mannix suspects the attorney of having killed the woman, of committing another murder, and of staging the attempted suicide of someone who confesses to committing the two other two deaths, even though there is scant evidence to support his theories.
Sat, Feb 8, 1969
Peggy has been dating a black musician named Gabe Johnson. While they are at a jazz club, he and a man in the audience both recognize one another, and Gabe flees, without Peggy and without his prized cornet. Peggy turns to Joe Mannix and asks him to investigate Gabe's disappearance. Mannix learns that Gabe's real name is Gabe Dillon, and that the man in the club who recognized him (and whom Gabe recognized) was the police chief from the southern town where Gabe escaped while serving a ten-year prison term for burglary, attempted murder, and hit and run. Mannix attempts to help Gabe, but his efforts are stymied by Gabe's own resistance, and by the police chief's dogged pursuit of the fugitive.
Sat, Feb 15, 1969
Mannix gets an urgent call from the police. Lt. Art Malcolm, Mannix's friend who also served with the detective during the Korean War, is being held hostage in an abandoned building. The police are unable to enter the structure, which is filled with explosive booby traps. The man behind Malcom's abduction served in the same outfit as Mannix and Malcom. The man was left behind when a group of G.I.'s escaped from a Korean prison camp. He has been revenging himself on the escapees and now only Mannix and Malcom are left alive.
Sat, Feb 22, 1969
Roger Bard, an Englishman who rents an office in the same complex as Joe Mannix, comes to work one day where he is first confronted by a man named Rhodes, whom he locks in a closet. Bard realizes that his office is being watched by three other men, whom he flees by escaping out a back window. Bard briefly climbs into the window in Mannix' office, where he gives Mannix his keys and asks Mannix to free Rhodes, before driving off with the three men in pursuit. Mannix discovers that Bard's office is an elaborate front, with no files or other paperwork of any kind. Then a tall, beautiful woman named Claudia appears, claiming to be Bard's niece. She tells Mannix that her uncle is hiding in Ensenada, and asks that Mannix accompany her there to aid him.
Sat, Mar 1, 1969
Mannix is hired to find Donald Jordan, a missing compulsive gambler. Mannix gets differing stories from Jordan's sister, wife and business partner. Then, he finds Jordan, who claims not to be in trouble. However, Jordan is being pursued by loan sharks. The detective not only seeks to establish the truth but also confronts those closest to Jordan, who have been enabling the gambling addict.
Sat, Mar 8, 1969
Mannix is hired to find a shipment of morphine -- "Miss Emma" -- stolen from a pharmaceutical firm. Peggy takes on a more active role than usual in trying to solve the morphine theft. Peggy also finds herself strongly attracted to Floyd Brown, a handsome black man who unsuccessfully tried to stop the morphine thieves, getting himself shot in the process.
Sat, Mar 22, 1969
Diana Walker, the daughter of a newspaper tycoon and Mannix' old flame, comes back into Mannix' life after a four-year absence. She is in a fragile mental state after believing that she killed a hoodlum named Johnny Malina, with whom she was also once involved, in a night-time road accident. Diana's father, sensing that she's terribly upset about something, asks Mannix to contact her once again, hoping that she will confide in Mannix about whatever is disturbing her.
Sat, Apr 5, 1969
Mannix is called in the middle of the night by an acquaintance, Pete Neal, and offered $1,000 to protect a man named Frank Devereau just until the following morning. Devereau is carrying $250,000, but he and Neal insist that the money is not stolen. Suddenly a car swerves by, shots ring out, Neal is killed, and the car disappears with both the money and Neal's body. Then Devereau runs off, too, leaving Mannix to report the shooting and disappearance of the money to the police with no other witnesses, no physical evidence, and no explanation where Devereau got such a large amount of money.
Sat, Apr 12, 1969
Peter Martin, the son of a respected doctor who often ministered to the less fortunate, is found at the bottom of the stairs in his home with his neck broken. His sister does not believe the medical examiner's conclusion that his death was accidental, and hires Mannix to find out if he was murdered, and if so, by whom. A clue left by a young boy whom Mannix observes spying on the Martin home leads Mannix to a Chicano neighborhood, where he discovers further evidence about Martin's death, but also uncovers resentments and accusations toward Martin by some residents of the neighborhood.
Sat, Oct 11, 1969
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.
Sat, Oct 25, 1969
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.
Sat, Nov 22, 1969
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.
Sat, Nov 29, 1969
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.
Sat, Dec 20, 1969
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.
Sat, Dec 27, 1969
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.