1971 • 24 Episodes
September 15, 1971
A blackmail victim is headed for prison.
September 22, 1971
A big kidnapping plot and an insignificant victim.
September 29, 1971
Mannix is the eyewitness of a murder; reportedly, it occurred a year before.
October 6, 1971
A labor dispute in his home town ends in murder.
October 13, 1971
Soviet agents want Marx's manuscript of Das Kapital, and a young woman has just inherited part of it.
October 20, 1971
A skid row bum is concealing his identity.
October 27, 1971
A contract is taken out on a Little League manager.
November 3, 1971
Strange circumstances surround an arrest by Mannix.
November 10, 1971
Peggy is kidnapped to force Mannix into an investigation.
November 17, 1971
The Case of the Singing Harp: a singer is kidnapped to reveal hidden loot.
November 24, 1971
Blackmail has its twists and turns.
December 1, 1971
Hired and fired, Mannix pursues a missing person.
December 8, 1971
Blackmail turns to murder and beyond.
December 15, 1971
Evidence rules out one confession, indicates another.
December 29, 1971
Disappearing enemies and friends force Mannix into a blackmail investigation.
January 5, 1972
Murder on the golf course leads to open season on Mannix, who's looking for valuable microcircuit plans hidden by the victim.
January 12, 1972
A dubious client is caught in his own machinations.
January 19, 1972
The fictitious name on a partnership contract apparently comes to life.
January 26, 1972
Mannix in the middle of a gang war.
February 9, 1972
In defense of a client accused of murder.
February 16, 1972
A singer piles into mounting trouble with the law.
February 23, 1972
Was a police shooting premeditated? Mannix is on (and off) the case.
March 1, 1972
Mannix transports jewels from London, or is that his double?
March 8, 1972
A racing accident lays Mannix up. While recuperating, he hears threats against him, but are they real?