Season 4

Sep 19, 1970 · 52 min

An acquaintance from Korean War days has a bone to pick.

Sep 26, 1970 · 52 min

Mannix is up to his private investigator's license in trouble, when a surprising source offers help.

Oct 3, 1970 · 52 min

A boxer's on the lam after a fixer's murder.

Oct 10, 1970 · 52 min

Someone keeps missing Mannix, but who's the real target?

Oct 17, 1970 · 52 min

Mannix is poisoned, and only the poisoner knows how.

Oct 24, 1970 · 52 min

Death row inmates force a case to be investigated.

Oct 31, 1970 · 52 min

A plunger disappears after a night in Vegas.

Nov 7, 1970 · 52 min

An African Premier is in the hospital incognito, where Peggy is laid up with on-the-job injuries.

Nov 14, 1970 · 52 min

Mannix stumbles into a mob plot at a highway cafe.

Nov 21, 1970 · 52 min

A Nazi Party figure turns up in the routine investigation of a helicopter crash.

Nov 28, 1970 · 52 min

A little girl is the key to a murder.

Dec 12, 1970 · 52 min

A seer foretells the end of Mannix, and it looks as if she may be right.

Dec 19, 1970 · 52 min

After her husband commits suicide in Hong Kong, Ellen Gray finds she's being shadowed by a Vietnamese for reasons that neither she nor Mannix can fathom.

Jan 2, 1971 · 52 min

A widow's husband was a man of mystery.

Jan 9, 1971 · 52 min

Mannix vaguely remembers a girl's death, but that's about all.

Jan 16, 1971 · 52 min

A cop under suspicion goes missing.

Jan 23, 1971 · 52 min

A threatened cop is in need of protection.

Jan 30, 1971 · 52 min

Threats prevent the discovery of a murder.

Feb 6, 1971 · 52 min

Ross and Alex are members of Mannix's college football team who put together an unconventional reunion in a ghost town. The reunion ends in murder and reveals years of deceit and jealousy that come to light in a series of bizarre and morbid.

Feb 13, 1971 · 52 min

A varsity basketball player vanishes strangely, and is sought curiously.

Feb 20, 1971 · 52 min

After an automobile accident, an Olympic diver receives threats.

Feb 27, 1971 · 52 min

An heiress suspects foul play.

Mar 20, 1971 · 52 min

Joe Mannix receives an urgent letter from a woman named Lynn Sargent asking him to fly to Arizona. She meets him at the airport and hands him a check for $1,000 and a small sealed package, telling him the money is his fee to take the package to the Los Angeles Police Department. Just as she does so, two men try to take the package, but Mannix manages to retain it after a scuffle. But the mystery deepens when the package turns out to contain nothing but blank sheets of paper -- and the police chief in the town tells Mannix that Lynn Sargent died a month earlier in a hit-and-run accident.

Mar 13, 1971 · 52 min

A serial killer's accounts may have been padded.