1969 • 25 Episodes
September 27, 1969
Two pals of Peggy's are accused of murder, and the real killer is elusive.
October 4, 1969
A colleague's death leads Mannix into a dubious investigation.
October 11, 1969
Old home week, as Mannix looks into a murder and tries to make up with his father.
October 18, 1969
Someone is out to get a film star.
October 25, 1969
Mannix reopens a malpractice case against opposition.
March 28, 1970
Three thugs hold Mannix, Peggy, and a woman hostage, claiming they want the $312,000 she has in a briefcase at home, but they may be after something even more valuable.
November 8, 1969
An accidental drowning has many surprising facets.
November 22, 1969
A secretary has an enemy, but who?
November 29, 1969
A hit-and-run case lands Mannix in the middle of a gang war.
December 6, 1969
A killer's attempt leaves Mannix blind.
December 13, 1969
The attempted murder of an executive leads Mannix to several likely suspects.
December 20, 1969
A stolen thoroughbred has Mannix buffaloed.
December 27, 1969
A policeman's son is suspected in a robbery.
January 3, 1970
Peggy's late husband is named on a list of payoffs.
January 10, 1970
A wealthy man hires Mannix to find the person blackmailing him—eventually leading to Mannix being suspected of murder.
January 17, 1970
Eyewitnesses peg Mannix's client, but the victim isn't what he seems, either.
January 24, 1970
A domestic quarrel, and a missing secretary, make for a confusing case—“Rashomon”-style.
January 31, 1970
Mannix tries to locate an heir, who is brought into danger by the attention.
February 7, 1970
A murder in the offing implicates an old army chum, but the victim's identity is uncertain.
February 14, 1970
Mannix has an enemy who seems to be dead.
February 21, 1970
The strange utterances of a disturbed young girl are clues in a case of robbery and murder.
February 28, 1970
A colleague's death leaves Mannix with the evidence he was murdered for.
March 7, 1970
A TV host's murder proves difficult to investigate, as everyvbody wants it canceled.
March 14, 1970
Mobsters try to extort a million from a small town.
March 21, 1970
Carnival mishaps may be aimed at the proprietor.