E1 - Dark So Early, Dark So Long

Aired: September 15, 1971

A blackmail victim is headed for prison.

E2 - Cold Trail

Aired: September 22, 1971

A big kidnapping plot and an insignificant victim.

E3 - A Step in Time

Aired: September 29, 1971

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

E4 - Wine From These Grapes

Aired: October 06, 1971

A labor dispute in his home town ends in murder.

E5 - Woman in the Shadows

Aired: October 13, 1971

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

E6 - Days Beyond Recall

Aired: October 20, 1971

A skid row bum is concealing his identity.

E7 - Run Till Dark

Aired: October 27, 1971

A contract is taken out on a Little League manager.

E8 - The Glass Trap

Aired: November 03, 1971

Strange circumstances surround an arrest by Mannix.

E9 - A Choice of Evils

Aired: November 10, 1971

Peggy is kidnapped to force Mannix into an investigation.

E10 - A Button for General D

Aired: November 17, 1971

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

E11 - The Man Outside

Aired: November 24, 1971

Blackmail has its twists and turns.

E12 - Murder Times Three

Aired: December 01, 1971

Hired and fired, Mannix pursues a missing person.

E13 - Catspaw

Aired: December 08, 1971

Blackmail turns to murder and beyond.

E14 - To Save a Dead Man

Aired: December 15, 1971

Evidence rules out one confession, indicates another.

E15 - Nightshade

Aired: December 29, 1971

Disappearing enemies and friends force Mannix into a blackmail investigation.

E16 - Babe in the Woods

Aired: January 05, 1972

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

E17 - The Sound of Murder

Aired: January 12, 1972

A dubious client is caught in his own machinations.

E18 - Moving Target

Aired: January 19, 1972

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

E19 - Cry Pigeon

Aired: January 26, 1972

Mannix in the middle of a gang war.

E20 - A Walk in the Shadows

Aired: February 09, 1972

In defense of a client accused of murder.

E21 - Lifeline

Aired: February 16, 1972

A singer piles into mounting trouble with the law.

E22 - To Draw the Lightning

Aired: February 23, 1972

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

E23 - Scapegoat

Aired: March 01, 1972

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

E24 - Death in the Fifth Gear

Aired: March 08, 1972

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