Season 1

1967-09-16

Mannix has side action on a kidnap case.

1967-09-23

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.

1967-09-30

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

1967-10-07

A scientist goes missing with a new formula.

1967-10-14

Mannix takes the case of a death row inmate.

1967-10-21

A threatened suicide.

1967-10-28

An incommunicado coed and a murdered basketball player.

1967-11-04

Mannix is hired to vet a prospective bridegroom.

1967-11-18

Investigating an insurance claim, Mannix finds himself intensely scrutinized.

1967-11-25

A missing boy and a cover-up.

1967-12-02

Blackmail in the film industry.

1967-12-09

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

1967-12-16

An undercover cop's murder exposes a vice operation.

1967-12-30

Undercover at a health farm for boozehounds.

1968-01-06

Mannix checks out an actress with an enemy.

1968-01-13

A psychopath's next victim might be his wife.

1968-01-20

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.

1968-01-27

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

1968-02-03

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

1968-02-10

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

1968-02-17

A faith healer gets blackmailed.

1968-03-02

Old labor woes come to light after an attempted murder.

1968-03-09

An unsolved murder and an author with enemies.

1968-03-16

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