Death Runs Wild

E1

Story tells of a demented woman out to kill private eye Anthony George. The instrument of death, as it turned out, was, a wild stallion she stocked on her ranch. Her motive was revenge. On a previous case, the private eye had brought her lover to justice and the gas chamber.

Interrupted Honeymoon

E2

The Cyanide Touch

E3

Lady on the Brink

E4

Checkmate comes to the aid of a woman with a traumatic past when it becomes evident that someone is trying to make it appear she's mentally unstable. discrediting her eye-witness testimony at a murder trial.

Face in the Window

E5

Runaway

E6

Target: Tycoon

E7

The Deadly Shadow

E8

The Dark Divide

E9

Barbara Rush plays a dual role in The dark divide. Why should Margaret Russell's life be threatened? Her aunt keeps getting phone calls from a woman named Nikki Garnett, threatening Margaret. What motive could the woman have?

Moment of Truth

E10

The Mask of Vengeance

E11

The Murder Game

E12

Attorney Emory Olivant invites Corey, Sills and Dr. Hyatt to a party. Once all the guests have arrived, Olivant announces that they are going to play a game—a murder game in which he will be the killer.

The Princess in the Tower

E13

The Terror from the East

E14

The Human Touch

E15

Arguably the finest episode of the series, featuring guest star Peter Lorre as an ex-con criminal mastermind determined to wreak revenge on master criminologist Sebastian Cabot. An intricate series of cat and mouse moves between the two geniuses culminates in a surprise and ultimately poignant ending, befitting the episode title. This episode stresses the close friendships between the three detectives of CHECKMATE INCORPORATED as it contrasts with that of the brilliant, but soulless Lorre. Directing, writing and acting are all exemplary.

Hour of Execution

E16

Don't Believe a Word She Says

E17

Laugh Till I Die

E18

Between Two Guns

E19

A Matter of Conscience

E20

Melody for Murder

E21

Phantom Lover

E22

The Gift

E23

Lola Tuscany, a temperamental lady soprano, is having premonitions of her death. After her concert she is almost poisoned and Checkmate Inc. is hired to keep her safe. Don Corey is skeptical, believing it is a publicity stunt, until he is nearly killed when a bomb explodes in the car he and Lola are driving in.

One for the Book

E24

The Paper Killer

E25

Jungle Castle

E26

After two attempts on his life, big game hunter Lee Tabor brings Dr. Hyatt and Carl to his home in the Malayan jungle. He asks for their help in finding out which of his three house guests is trying to kill him.

The Deadly Silence

E27

Goodbye Griff

E28

""Ex-convict Griff Nolan is jealous because his wife Libby earns more as a magazine editor than he does as a mechanic. More domestic strife develops when Griff becomes jealous of Libby's boss Lewis Bates --- and buys a gun."" -- TV Guide

Voyage Into Fear

E30

Tight As a Drum

E31

Death by Design

E32

The Thrill Seeker

E33

Hot Wind in a Cold Town

E34

A Slight Touch of Venom

E35

State of Shock

E36