Season 5

Sep 15, 1971 · 52 min

A blackmail victim is headed for prison.

Sep 22, 1971 · 52 min

A big kidnapping plot and an insignificant victim.

Sep 29, 1971 · 52 min

Mannix is the eyewitness of a murder; reportedly, it occurred a year before.

Oct 6, 1971 · 52 min

A labor dispute in his home town ends in murder.

Oct 13, 1971 · 52 min

Soviet agents want Marx's manuscript of Das Kapital, and a young woman has just inherited part of it.

Oct 20, 1971 · 52 min

A skid row bum is concealing his identity.

Oct 27, 1971 · 52 min

A contract is taken out on a Little League manager.

Nov 3, 1971 · 52 min

Strange circumstances surround an arrest by Mannix.

Nov 10, 1971 · 52 min

Peggy is kidnapped to force Mannix into an investigation.

Nov 17, 1971 · 52 min

The Case of the Singing Harp: a singer is kidnapped to reveal hidden loot.

Nov 24, 1971 · 52 min

Blackmail has its twists and turns.

Dec 1, 1971 · 52 min

Hired and fired, Mannix pursues a missing person.

Dec 8, 1971 · 52 min

Blackmail turns to murder and beyond.

Dec 15, 1971 · 52 min

Evidence rules out one confession, indicates another.

Dec 29, 1971 · 52 min

Disappearing enemies and friends force Mannix into a blackmail investigation.

Jan 5, 1972 · 52 min

Murder on the golf course leads to open season on Mannix, who's looking for valuable microcircuit plans hidden by the victim.

Jan 12, 1972 · 52 min

A dubious client is caught in his own machinations.

Jan 19, 1972 · 52 min

The fictitious name on a partnership contract apparently comes to life.

Jan 26, 1972 · 52 min

Mannix in the middle of a gang war.

Feb 9, 1972 · 52 min

In defense of a client accused of murder.

Feb 16, 1972 · 52 min

A singer piles into mounting trouble with the law.

Feb 23, 1972 · 52 min

Was a police shooting premeditated? Mannix is on (and off) the case.

Mar 1, 1972 · 52 min

Mannix transports jewels from London, or is that his double?

Mar 8, 1972 · 52 min

A racing accident lays Mannix up. While recuperating, he hears threats against him, but are they real?