A quiet town is ruffled by Mannix in his search for a missing youth.

An escaped convict saves Mannix's life.

Mannix probes a journalist's murder.

A street gang plots to do Mannix in to make a name for itself.

A search inquiry proves hazardous, and Mannix finds his client is a ringer.

On vacation, Mannix discovers a hit operation.

A girl disappears, and Mannix investigates her Vegas connection.

An opera diva emerges from retirement and is met with inexplicable attempts on her life.

Mannix tracks down stolen jewels also wanted by a blind hood.

An actress claims a bizarre murder attempt.

An old girlfriend makes Mannix the man in the middle of rival smugglers.

A plane crash is followed by murder attempts.

A patriot in a dictatorship needs medical help.

The patriotic resistance finds a traitor amongst them.

In possession of a piece of evidence, Mannix is shot and left for dead.

A double set-up puts Lt. Malcolm behind bars.

An open and shut case gets padlocked.

A little girl is killed leaving no identity.

A psychiatrist who treats sociopaths is supposed to have committed suicide.

A murder's clues indicate a cop.

A clueless investigation goes on pluck.

Bribery money is taken in a robbery.

The ravages of heroin.