Aired: September 16, 1967
Mannix has side action on a kidnap case.
Aired: September 23, 1967
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.
Aired: September 30, 1967
Mannix is set up for the murder of an old girlfriend's husband.
Aired: October 07, 1967
A scientist goes missing with a new formula.
Aired: October 14, 1967
Mannix takes the case of a death row inmate.
Aired: October 21, 1967
A threatened suicide.
Aired: October 28, 1967
An incommunicado coed and a murdered basketball player.
Aired: November 04, 1967
Mannix is hired to vet a prospective bridegroom.
Aired: November 18, 1967
Investigating an insurance claim, Mannix finds himself intensely scrutinized.
Aired: November 25, 1967
A missing boy and a cover-up.
Aired: December 02, 1967
Blackmail in the film industry.
Aired: December 09, 1967
A libel suit against a newspaper at the state capital involves politics and the mob.
Aired: December 16, 1967
An undercover cop's murder exposes a vice operation.
Aired: December 30, 1967
Undercover at a health farm for boozehounds.
Aired: January 06, 1968
Mannix checks out an actress with an enemy.
Aired: January 13, 1968
A psychopath's next victim might be his wife.
Aired: January 20, 1968
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.
Aired: January 27, 1968
The two paths of the case meet at the water's edge.
Aired: February 03, 1968
Mannix quits rather than chase a necklace and a mobster, and stumbles into a case of murder and fraud.
Aired: February 10, 1968
A missing million leads Mannix out of Intertect as bait for a drug ring.
Aired: February 17, 1968
A faith healer gets blackmailed.
Aired: March 02, 1968
Old labor woes come to light after an attempted murder.
Aired: March 09, 1968
An unsolved murder and an author with enemies.
Aired: March 16, 1968
A fake Renoir is suspected, and the model is in danger.