Air date: 1967-09-16

Runtime: 52 min

Mannix has side action on a kidnap case.

Air date: 1967-09-23

Runtime: 52 min

Mannix is hired to find out any dirt on Govenor-elect Adam Pierson, and that's when the trouble starts: with his syndicate connections, people are dying fast.

Air date: 1967-09-30

Runtime: 52 min

Mannix is set up for the murder of an old girlfriend's husband.

Air date: 1967-10-07

Runtime: 52 min

A scientist goes missing with a new formula.

Air date: 1967-10-14

Runtime: 52 min

Mannix takes the case of a death row inmate.

Air date: 1967-10-21

Runtime: 52 min

A threatened suicide.

Air date: 1967-10-28

Runtime: 52 min

An incommunicado coed and a murdered basketball player.

Air date: 1967-11-04

Runtime: 52 min

Mannix is hired to vet a prospective bridegroom.

Air date: 1967-11-18

Runtime: 52 min

Investigating an insurance claim, Mannix finds himself intensely scrutinized.

Air date: 1967-11-25

Runtime: 52 min

A missing boy and a cover-up.

Air date: 1967-12-02

Runtime: 52 min

Blackmail in the film industry.

Air date: 1967-12-09

Runtime: 52 min

A libel suit against a newspaper at the state capital involves politics and the mob.

Air date: 1967-12-16

Runtime: 52 min

An undercover cop's murder exposes a vice operation.

Air date: 1967-12-30

Runtime: 52 min

Undercover at a health farm for boozehounds.

Air date: 1968-01-06

Runtime: 52 min

Mannix checks out an actress with an enemy.

Air date: 1968-01-13

Runtime: 52 min

A psychopath's next victim might be his wife.

Air date: 1968-01-20

Runtime: 52 min

The strong friendship between Lew Wickersham and Mannix melts into a violent and deathly feud. The bitter battle begins when Mannix launches an investigation into the theft of a highly secret formula for the development of a laser ray. Stolen plans and sabotage involve Intertect and their agents.

Air date: 1968-01-27

Runtime: 52 min

The two paths of the case meet at the water's edge.

Air date: 1968-02-03

Runtime: 52 min

Mannix quits rather than chase a necklace and a mobster, and stumbles into a case of murder and fraud.

Air date: 1968-02-10

Runtime: 52 min

A missing million leads Mannix out of Intertect as bait for a drug ring.

Air date: 1968-02-17

Runtime: 52 min

A faith healer gets blackmailed.

Air date: 1968-03-02

Runtime: 52 min

Old labor woes come to light after an attempted murder.

Air date: 1968-03-09

Runtime: 52 min

An unsolved murder and an author with enemies.

Air date: 1968-03-16

Runtime: 52 min

A fake Renoir is suspected, and the model is in danger.