Wed, Jan 12, 1972
Mannix is hired by a woman from Cleveland named Marcia Inman to locate her missing husband. Mannix investigates her husband's business contacts and follows a man matching his description after the man leaves what appears to be his mistress' apartment. But when the man Mannix followed ends up dead, Mrs. Inman claims that the dead man was not her missing husband.
Wed, Jan 19, 1972
Someone tries to kill Ken Mitchell, the head of a toy-making firm. Not wanting a violent incident to be associated with a toy business, Mitchell instead hires Joe Mannix to find out who might have tried to kill him. Suspicion soon falls upon Mitchell's "silent partner," Paul Anders, but Mannix' investigation is stymied when it first appears that Anders may have committed suicide - or may never have existed.
Wed, Jan 26, 1972
Tom Fortune, the rising young scion of a mobster family, tries to hire Mannix to shadow his wife, whom he suspects of being unfaithful, when Fortune is gunned down. Fortune's family members, especially his father, suspect that Mannix set up Tom for the ambush -- suspicions that are enhanced when Tom Fortune's widow is spotted leaving Mannix' office.
Wed, Feb 9, 1972
A man named Tom Farnon suspects his wife of having an affair, and follows her to his boat where she is to meet her lover. But a shot rings out, the other man flees, the boat explodes, and Farnon finds himself a suspect in her murder. Farnon approaches Joe Mannix and asks Mannix to learn the identity of the man she met. The best lead Mannix has is Phil Rand, another private investigator who once worked for Farnon -- but Rand insists that Mrs. Farnon never had an affair.
Wed, Feb 16, 1972
Vance Logan is a talented singer who is also a friend of Peggy's. One night while he and Peggy are in a nightclub, Logan is approached by a police officer about what appears to be a minor property damage claim. Logan responds by taking a gun and barricading himself in a warehouse, where he eventually is shot trying to flee. As Logan fights for his life, Joe Mannix decides to try to find out why Logan was so reluctant to cooperate with the police even about a routine matter.
Wed, Feb 23, 1972
Police Lt. Larry Gifford follows a tip leading him to a warehouse, where he surprises a man apparently committing a burglary. After an exchange of gunfire, Gifford discovers that the man he killed is Danny Constantine, who once killed Gifford's partner but was released on a technicality. Facing possible dismissal from the police force, or even murder charges, Gifford hires Joe Mannix to try to find information that will clear his name.
Wed, Mar 1, 1972
Joe Mannix is called to the office of an air freight company and asked to investigate some cargo thefts, unaware that this is a ruse to allow the operators of the company to substitute a double in his place. When Mannix then tries to leave on a confidential trip to London, he is kidnapped by the men from the air freight company and taken to a remote old west ghost town - while the impostor takes his place on the mission to London.
Wed, Mar 8, 1972
Joe Mannix is participating in an auto race when he suddenly begins to experience hallucinations. The resulting crash lands him in a private hospital, where the delusions and paranoia continue. But then a young nurse confides in Mannix that the physician in charge of the facility -- whom Mannix also knew as his friend -- has actually been giving him drugs to keep him in that condition. With her help, Mannix arranges an escape, to learn why he has been victimized in this way.
Sun, Sep 17, 1972
Joe Mannix is visited one night by Ken Gordon, a young police officer whose life Mannix once saved. Unfortunately, moments later Gordon takes a bullet meant for Mannix, fired by Victor Roarke, a criminal whom Mannix once helped capture. Roarke is taken into custody, but claims to know the location of a missing judge's body -- but Mannix and Art Malcolm soon discover that Roarke's claim is part of an elaborate attempt at escape and extortion.
Sun, Oct 1, 1972
Mannix is hired by attorney Noah Otway to find out why someone tried to kill Otway's client, Dr. Graham Aspinall, a renowned surgeon whose specialty is removing tumors that are otherwise believed to be inoperable. Despite the doctor's denials that anyone has a motive to kill him, Mannix comes to believe otherwise when he barely saves Aspinall from a second attempt on his life. And Mannix discovers that there are several people who might have a motive to kill Dr. Aspinall -- including the second-in-command at his medical institute; the boyfriend of one of Aspinall's research assistants; and even his wife.
Sun, Oct 8, 1972
The wife of a wealthy industrialist disappears from their sailboat off the coast of Mexico, and he initially hires Mannix to learn how she disappeared (and partly because he knows that a husband is usually the primary suspect in the disappearance of a wife). Then his wife is found, apparently safe, in a small village in Mexico. But after she returns to California, Mannix -- with Art Malcolm's help -- learns some disturbing information about her past, which suggests that she might know more about her disappearance than she is willing to admit.
Sun, Oct 15, 1972
A Vietnam war hero who married into the family of an aircraft manufacturer is killed by a grenade tossed into an elevator just before the doors close. The elevator operator, Roy Elkins, survives, but while in a near-coma, he keeps murmuring what appears to be a woman's name, "Joyce." Because Joe Mannix is Elkins' friend, he decides to try to find out why someone nearly killed him -- beginning with an attempt to learn what Elkins means by the mysterious "Joyce."
Sun, Oct 22, 1972
Joe Mannix goes undercover by joining a New Orleans mob to learn the identity of another member of the organization who wants to turn state's evidence against the head mobster, Lytell. His task becomes complicated, however, when he begins a romance with a woman named Angela who is close to Lytell and may still be loyal to him -- and when he learns that there is an informer within New Orleans' law enforcement who has tipped Lytell that there is an informant in his organization, too.
Sun, Oct 29, 1972
A young man whom his associates know as Dan Turner arrives in Los Angeles, where he separates from them and boards a bus for Palmdale. There he finds his family, who know him as Alex Lachlan, an Army Ranger missing in Vietnam and presumed dead. Joe Mannix is asked to help unravel where he has been for two years or why he is carrying Turner's identification. Mannix uncovers evidence that Turner/Lachlan may have fallen in with some shady associates -- and there appear to be reasons why Lachlan's brother isn't happy he has returned, either.
Sun, Nov 5, 1972
A young boy approaches Joe Mannix and offers him $1.85 to try to find a stamp album that the boy says he lost at an amusement arcade. After some investigation, Mannix believes the album might have been found by a street artist nicknamed Gemini whose girlfriend says he suddenly disappeared after talking about an "inheritance". Mannix' theory that Gemini found the album seems to be confirmed when Gemini tries to sell one stamp to a dealer - except that the stamp turns out to be worth thousands of dollars.
Sun, Nov 12, 1972
Mannix goes to what he believes is a meeting with a new client, but is ambushed by a gunman who accuses him of working for Bruno Raphael, a former crime boss now exiled from the United States. While trying to figure out why someone thinks he is working for Raphael, Mannix meets with Raphael's granddaughter and her husband, who tell Mannix that someone has been shadowing them. Mannix soon learns that Raphael has indeed returned to the United States - and that he is caught between Raphael and his successor mobsters, any of whom might have a motive to kill Mannix.
Sun, Nov 19, 1972
Two crop-dusting pilots who worked for orange grower Clint Carpenter have vanished without a trace. Joe Mannix is asked by his former military buddy, Dave Winters, who runs the crop-dusting service, to help solve the mystery of their disappearance. Mannix returns to the California farmland of his youth posing as a new pilot, but soon finds himself in the middle of a feud between his client and the local Armenian farm workers - whose leader claims that he and his people were cheated out of the land Carpenter now cultivates.
Sun, Nov 26, 1972
Joe Mannix refers four cases to down-on-his-luck fellow private eye Jerry Henderson. But when Henderson is murdered, Mannix suspects that it was because of one of the four cases he referred -- an extortion case, a divorce involving infidelity, a drug overdose victim's father, and a man being pressured by a loan shark. Feeling responsible for Henderson's death, Mannix decides to look into each case himself to find out whether one of them resulted in his friend's death.
Sun, Dec 3, 1972
Mannix travels to northern California, where he's been hired by the sister of a young man who disputes the cause of her brother's death. The coroner's verdict was accidental death when the man fell from a gantry at a sand and gravel quarry while drunk. Mannix finds evidence that his death may not have been accidental, beginning with his discovery of rifle shell casings at the quarry. But his investigation is halted when he's jailed on trumped-up charges by two local deputies -- who clearly intend that Mannix never come up for a court hearing or get out of jail alive.
Sun, Dec 17, 1972
The wife of a wealthy jet-setter is accused of murdering a philandering playboy on her husband's yacht, and the wealthy man hires Joe Mannix to investigate the crime, hoping he will turn up evidence to exculpate his wife. Mannix finds that there is no shortage of suspects who might have wanted the murdered man dead -- including his own client and his client's daughter. But when another suspect is killed, and two hoods show up threatening Mannix to get off the case, Mannix realizes that he may be investigating more than just a murder among the idle rich.
Sun, Dec 24, 1972
The head of an electronics firm arrives home to find his wife drowned at the bottom of their pool, just as one of his rising young associates flees the scene. It looks like an open-and-shut case to the police, but the missing man's girlfriend insists that he is innocent, and asks Mannix to find the man and assist him. Mannix reluctantly takes the case, but the mystery soon deepens as Mannix discovers that the man may have had other identities -- and secrets aplenty in his past.