Season 1

1. Death Runs Wild

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.

1960-09-17 • 60 min

2. Interrupted Honeymoon

1960-09-24 • 60 min

3. The Cyanide Touch

1960-10-01 • 60 min

4. Lady on the Brink

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.

1960-10-15 • 60 min

5. Face in the Window

1960-10-22 • 60 min

6. Runaway

1960-10-29 • 60 min

7. Target: Tycoon

1960-11-05 • 60 min

8. The Deadly Shadow

1960-11-12 • 60 min

9. The Dark Divide

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?

1960-11-19 • 60 min

10. Moment of Truth

1960-11-26 • 60 min

11. The Mask of Vengeance

1960-12-03 • 60 min

12. The Murder Game

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.

1960-12-17 • 60 min

13. The Princess in the Tower

1960-12-31 • 60 min

14. The Terror from the East

1961-01-07 • 60 min

15. The Human Touch

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.

1961-01-14 • 60 min

16. Hour of Execution

1961-01-21 • 60 min

17. Don't Believe a Word She Says

1961-01-28 • 60 min

18. Laugh Till I Die

1961-02-04 • 60 min

19. Between Two Guns

1961-02-11 • 60 min

20. A Matter of Conscience

1961-02-18 • 60 min

21. Melody for Murder

1961-02-25 • 60 min

22. Phantom Lover

1961-03-04 • 60 min

23. The Gift

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.

1961-03-11 • 60 min

24. One for the Book

1961-03-18 • 60 min

25. The Paper Killer

1961-03-25 • 60 min

26. Jungle Castle

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.

1961-04-01 • 60 min

27. The Deadly Silence

1961-04-08 • 60 min

28. Goodbye Griff

""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

1961-04-15 • 60 min

30. Voyage Into Fear

1961-05-06 • 60 min

31. Tight As a Drum

1961-05-13 • 60 min

32. Death by Design

1961-05-20 • 60 min

33. The Thrill Seeker

1961-05-27 • 60 min

34. Hot Wind in a Cold Town

1961-06-10 • 60 min

35. A Slight Touch of Venom

1961-06-17 • 60 min

36. State of Shock

1961-06-24 • 60 min