Aired: 9/27/1969
Two pals of Peggy's are accused of murder, and the real killer is elusive.
Aired: 10/4/1969
A colleague's death leads Mannix into a dubious investigation.
Aired: 10/11/1969
Old home week, as Mannix looks into a murder and tries to make up with his father.
Aired: 10/18/1969
Someone is out to get a film star.
Aired: 10/25/1969
Mannix reopens a malpractice case against opposition.
Aired: 3/28/1970
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.
Aired: 11/8/1969
An accidental drowning has many surprising facets.
Aired: 11/22/1969
A secretary has an enemy, but who?
Aired: 11/29/1969
A hit-and-run case lands Mannix in the middle of a gang war.
Aired: 12/6/1969
A killer's attempt leaves Mannix blind.
Aired: 12/13/1969
The attempted murder of an executive leads Mannix to several likely suspects.
Aired: 12/20/1969
A stolen thoroughbred has Mannix buffaloed.
Aired: 12/27/1969
A policeman's son is suspected in a robbery.
Aired: 1/3/1970
Peggy's late husband is named on a list of payoffs.
Aired: 1/10/1970
A wealthy man hires Mannix to find the person blackmailing him—eventually leading to Mannix being suspected of murder.
Aired: 1/17/1970
Eyewitnesses peg Mannix's client, but the victim isn't what he seems, either.
Aired: 1/24/1970
A domestic quarrel, and a missing secretary, make for a confusing case—“Rashomon”-style.
Aired: 1/31/1970
Mannix tries to locate an heir, who is brought into danger by the attention.
Aired: 2/7/1970
A murder in the offing implicates an old army chum, but the victim's identity is uncertain.
Aired: 2/14/1970
Mannix has an enemy who seems to be dead.
Aired: 2/21/1970
The strange utterances of a disturbed young girl are clues in a case of robbery and murder.
Aired: 2/28/1970
A colleague's death leaves Mannix with the evidence he was murdered for.
Aired: 3/7/1970
A TV host's murder proves difficult to investigate, as everyvbody wants it canceled.
Aired: 3/14/1970
Mobsters try to extort a million from a small town.
Aired: 3/21/1970
Carnival mishaps may be aimed at the proprietor.