Seasons & episodes
S3 · E1Eagles Sometimes Can't Fly 1969-09-27 · 52 min
Two pals of Peggy's are accused of murder, and the real killer is elusive.
S3 · E2Color Her Missing 1969-10-04 · 52 min
A colleague's death leads Mannix into a dubious investigation.
S3 · E3Return to Summer Grove 1969-10-11 · 52 min
Old home week, as Mannix looks into a murder and tries to make up with his father.
S3 · E4The Playground 1969-10-18 · 52 min
Someone is out to get a film star.
S3 · E5A Question of Midnight 1969-10-25 · 52 min
Mannix reopens a malpractice case against opposition.
S3 · E6A Penny for the Peep Show 1970-03-28 · 52 min
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.
S3 · E7A Sleep in the Deep 1969-11-08 · 52 min
An accidental drowning has many surprising facets.
S3 · E8Memory: Zero 1969-11-22 · 52 min
A secretary has an enemy, but who?
S3 · E9The Nowhere Victim 1969-11-29 · 52 min
A hit-and-run case lands Mannix in the middle of a gang war.
S3 · E10The Sound of Darkness 1969-12-06 · 52 min
A killer's attempt leaves Mannix blind.
S3 · E11Who Killed Me? 1969-12-13 · 52 min
The attempted murder of an executive leads Mannix to several likely suspects.
S3 · E12Missing: Sun and Sky 1969-12-20 · 52 min
A stolen thoroughbred has Mannix buffaloed.
S3 · E13Tooth of the Serpent 1969-12-27 · 52 min
A policeman's son is suspected in a robbery.
S3 · E14Medal for a Hero 1970-01-03 · 52 min
Peggy's late husband is named on a list of payoffs.
S3 · E15Walk With a Dead Man 1970-01-10 · 52 min
A wealthy man hires Mannix to find the person blackmailing him—eventually leading to Mannix being suspected of murder.
S3 · E16A Chance at the Roses 1970-01-17 · 52 min
Eyewitnesses peg Mannix's client, but the victim isn't what he seems, either.
S3 · E17Blind Mirror 1970-01-24 · 52 min
A domestic quarrel, and a missing secretary, make for a confusing case—“Rashomon”-style.
S3 · E18Harlequin's Gold 1970-01-31 · 52 min
Mannix tries to locate an heir, who is brought into danger by the attention.
S3 · E19Who is Sylvia? 1970-02-07 · 52 min
A murder in the offing implicates an old army chum, but the victim's identity is uncertain.
S3 · E20Only One Death to a Customer 1970-02-14 · 52 min
Mannix has an enemy who seems to be dead.
S3 · E21Fly, Little One 1970-02-21 · 52 min
The strange utterances of a disturbed young girl are clues in a case of robbery and murder.
S3 · E22The Search for Darrell Andrews 1970-02-28 · 52 min
A colleague's death leaves Mannix with the evidence he was murdered for.
S3 · E23Murder Revisited 1970-03-07 · 52 min
A TV host's murder proves difficult to investigate, as everyvbody wants it canceled.
S3 · E24War of Nerves 1970-03-14 · 52 min
Mobsters try to extort a million from a small town.