E1
Mannix has side action on a kidnap case.
E2
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.
E3
Mannix is set up for the murder of an old girlfriend's husband.
E4
A scientist goes missing with a new formula.
E5
Mannix takes the case of a death row inmate.
E6
A threatened suicide.
E7
An incommunicado coed and a murdered basketball player.
E8
Mannix is hired to vet a prospective bridegroom.
E9
Investigating an insurance claim, Mannix finds himself intensely scrutinized.
E10
A missing boy and a cover-up.
E11
Blackmail in the film industry.
E12
A libel suit against a newspaper at the state capital involves politics and the mob.
E13
An undercover cop's murder exposes a vice operation.
E14
Undercover at a health farm for boozehounds.
E15
Mannix checks out an actress with an enemy.
E16
A psychopath's next victim might be his wife.
E17
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.
E18
The two paths of the case meet at the water's edge.
E19
Mannix quits rather than chase a necklace and a mobster, and stumbles into a case of murder and fraud.
E20
A missing million leads Mannix out of Intertect as bait for a drug ring.
E21
A faith healer gets blackmailed.
E22
Old labor woes come to light after an attempted murder.
E23
An unsolved murder and an author with enemies.
E24
A fake Renoir is suspected, and the model is in danger.