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Star Trek: The Original Series
Star Trek is a science fiction television series created by Gene Roddenberry that aired from September 8, 1966 to September 2, 1969. Though the original series was titled simply Star Trek, it has acquired the retronym Star Trek: The Original Series (ST:TOS or TOS) to distinguish it from the...
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The Cage
"The Cage" is the original pilot episode of the original Star Trek science fiction series and resulting franchise. It was completed in early 1965 (with a copyright date of 1964), but not broadcast on television in its complete form until 1988. The...
Original air date:
- Oct 15, 1988
Episode number:
- 0
Writer:
Director:
The Man Trap
"The Man Trap" is a first-season episode of Star Trek: The Original Series. It originally aired on Thursday, September 8, 1966, and was the first episode to be shown on NBC. It is episode #1, production #6, and was written by George Clayton Johnson,...
Original air date:
- Sep 8, 1966
Episode number:
- 1
Writer:
Director:
Charlie X
"Charlie X" is a first season episode of the original series of Star Trek, first broadcast on September 15, 1966. It was repeated by NBC on June 1, 1967. It is episode #2, production #8. It was written by D.C. Fontana, with the story by Gene...
Original air date:
- Sep 15, 1966
Episode number:
- 2
Director:
Where No Man Has Gone Before
"Where No Man Has Gone Before" is the second pilot episode of the television series Star Trek (later known as Star Trek: The Original Series). It was produced in 1965 after the first pilot, "The Cage", had been rejected by NBC. The episode was...
Original air date:
- Sep 22, 1966
Episode number:
- 3
Writer:
Director:
The Naked Time
"The Naked Time" is an episode of Star Trek: The Original Series first broadcast September 29, 1966, and repeated on April 27, 1967. It is a first season episode #4, production #7, and was written by John D. F. Black and directed by Marc Daniels. It...
Original air date:
- Sep 29, 1966
Episode number:
- 4
Director:
The Enemy Within
"The Enemy Within" is an episode of Star Trek: The Original Series, and was broadcast on October 6, 1966. It is a first season episode #5, production #5, and was written by Richard Matheson and directed by Leo Penn.
Overview: A transporter mishap...
Original air date:
- Oct 6, 1966
Episode number:
- 5
Writer:
Director:
Mudd's Women
"Mudd's Women" is an episode of Star Trek: The Original Series first broadcast October 13, 1966 and repeated May 4, 1967. It is a first season episode #6, production #4, and was written by Stephen Kandel, based on a story by Gene Roddenberry and...
Original air date:
- Oct 13, 1966
Episode number:
- 6
Writer:
What Are Little Girls Made Of?
"What Are Little Girls Made Of?" is a first season episode of Star Trek: The Original Series. It is episode #7, production #10, and was first broadcast October 20, 1966. It was repeated two months later, on December 22, 1966, and was the first...
Original air date:
- Oct 20, 1966
Episode number:
- 7
Writer:
Director:
Dagger of the Mind
"Dagger of the Mind" is a first season episode of Star Trek: The Original Series. It is episode #9, production #11 and was broadcast November 3, 1966. It was written by Shimon Wincelberg (under the pen name "S. Bar-David"), and directed by Vincent...
Original air date:
- Nov 3, 1966
Episode number:
- 9
The Corbomite Maneuver
"The Corbomite Maneuver" is a first season episode of Star Trek: The Original Series, first aired November 10, 1966, and repeated May 11, 1967. It is episode #10, production #3, the first regular episode of Star Trek produced after the two pilots,...
Original air date:
- Nov 10, 1966
Episode number:
- 10
Writer:
Director:
The Changeling
"The Changeling" is a season two episode of Star Trek: The Original Series, first broadcast on September 29, 1967 and repeated May 17, 1968. It is episode #32, production #37 and was written by John Meredyth Lucas, and directed by Marc Daniels.
The...
Original air date:
- Sep 29, 1967
Episode number:
- 32
Writer:
Director:
And the Children Shall Lead
"And the Children Shall Lead" is a third-season episode of Star Trek: The Original Series, and was broadcast October 11, 1968. It is episode #59, production #60, written by Edward J. Lakso and directed by Marvin Chomsky.
Overview: On a distant...
Original air date:
- Oct 11, 1968
Episode number:
- 59
Writer:
The Return of the Archons
"The Return of the Archons" is a first season episode of Star Trek: The Original Series. It is episode #21, production #22, and was first aired February 9, 1967. It was repeated by NBC on July 27, 1967. The screenplay was written by Boris Sobelman,...
Original air date:
- Feb 9, 1967
Episode number:
- 21
Writer:
Director:
The Galileo Seven
"The Galileo Seven" is a first season episode of Star Trek: The Original Series and was broadcast by NBC on January 5, 1967. It is episode #16, production #14, written by Oliver Crawford and directed by Robert Gist.
Overview: Mr. Spock leads a...
Original air date:
- Jan 5, 1967
Episode number:
- 16
Director:
The Ultimate Computer
"The Ultimate Computer" is a season two episode of Star Trek: The Original Series, first broadcast on March 8, 1968 and repeated June 28, 1968. It is episode #53, production #53, written by D.C. Fontana, based on a story by Laurence N. Wolf, and...
Original air date:
- Mar 8, 1968
Episode number:
- 53
Writer:
Director:
Operation: Annihilate!
"Operation: Annihilate!" is the last original episode from the first season of the original Star Trek series. It is episode #29, production #29, and was broadcast April 13, 1967. It was written by Stephen W. Carabatsos, and directed by Herschel...
Original air date:
- Apr 13, 1967
Episode number:
- 29
Director:
Court Martial
"Court Martial" is an episode of Star Trek: The Original Series. It is a first season episode, #20, production #15, and was aired on February 2, 1967. It was written by Don M. Mankiewicz, and Stephen W. Carabatsos, and directed by Marc Daniels....
Original air date:
- Feb 2, 1967
Episode number:
- 20
Director:
Journey to Babel
"Journey to Babel" is an episode of Star Trek: The Original Series. It is episode #39, production #44 and was first broadcast on November 17, 1967 during the second season. It was repeated on July 5, 1968. It was written by D.C. Fontana and directed...
Original air date:
- Nov 17, 1967
Episode number:
- 39
Writer:
Director:
The Lights of Zetar
"The Lights of Zetar" is a third season episode of Star Trek: The Original Series, first broadcast January 31, 1969 and repeated on August 26, 1969. It is episode #73, production #73, written by Jeremy Tarcher and Shari Lewis, and directed by Herb...
Original air date:
- Jan 31, 1969
Episode number:
- 73
Writer:
Director:
I, Mudd
"I, Mudd" is a second season episode of Star Trek: The Original Series first broadcast November 3, 1967 and repeated April 5, 1968. It is episode #37, production #41, and was written by Stephen Kandel, based on a story by Gene Roddenberry and...
Original air date:
- Nov 3, 1967
Episode number:
- 37
Director:
Mirror, Mirror
"Mirror, Mirror" is an episode of Star Trek: The Original Series. It is a second-season episode, #33, production #39, and was broadcast for the first time on October 6, 1967. It was repeated on April 12, 1968. It was written by Jerome Bixby and...
Original air date:
- Oct 6, 1967
Episode number:
- 33
Writer:
Director:
The Omega Glory
"The Omega Glory" is a second season episode of Star Trek: The Original Series, first broadcast March 1, 1968 and repeated July 26, 1968. It is episode #52, production #54, written by Gene Roddenberry, and directed by Vincent McEveety.
There is no...
Original air date:
- Mar 1, 1968
Episode number:
- 52
Writer:
The Empath
"The Empath" is a third season episode of Star Trek: The Original Series, and was broadcast December 6, 1968. It is episode #67, production #63, written by Joyce Muskat and directed by John Erman.
Overview: While visiting a doomed planet, the...
Original air date:
- Dec 6, 1968
Episode number:
- 67
Writer:
Director:
The Conscience of the King
"The Conscience of the King" is an episode of Star Trek: The Original Series. It is episode #13, production #13, and aired on December 8, 1966. It was written by Barry Trivers and directed by Gerd Oswald.
The episode takes its title from the...
Original air date:
- Dec 8, 1966
Episode number:
- 13
Director:
For the World Is Hollow and I Have Touched the Sky
"For the World is Hollow and I Have Touched the Sky" is a third season episode of Star Trek: The Original Series. It is episode #63, production #65, and was aired by NBC on November 8, 1968. It was written by Rik Vollaerts, and directed by Tony...
Original air date:
- Nov 8, 1968
Episode number:
- 63
All Our Yesterdays
"All Our Yesterdays" is a third season (and the penultimate) episode of Star Trek: The Original Series, first broadcast March 14, 1969 and repeated on August 5, 1969. It is episode #78, production #78, written by Jean Lisette Aroeste, and directed...
Original air date:
- Mar 14, 1969
Episode number:
- 78
Writer:
Wink of an Eye
"Wink of an Eye" is a third season episode of Star Trek: The Original Series, and was first broadcast on November 29, 1968. It was repeated on June 24, 1969. It is episode #66, production #68, and was written by Arthur Heinemann, based on a story by...
Original air date:
- Nov 29, 1968
Episode number:
- 66
Director:
Amok Time
"Amok Time" is an episode of Star Trek: The Original Series. It is episode #30, production #34, and first broadcast on September 15, 1967. It was repeated April 26, 1968. This was the first episode of the second season, and the first to air after...
Original air date:
- Sep 15, 1967
Episode number:
- 30
Writer:
Director:
By Any Other Name
"By Any Other Name" is a second season episode of Star Trek: The Original Series, first broadcast February 23, 1968 and repeated May 31, 1968. It is episode #51, production #50, written by D.C. Fontana and Jerome Bixby, and directed by Marc Daniels....
Original air date:
- Feb 23, 1968
Episode number:
- 51
Director:
Bread and Circuses
"Bread and Circuses" is a second season episode of Star Trek: The Original Series, broadcast on March 15, 1968. It is episode #54, production #43, written by Gene Roddenberry, and Gene L. Coon and directed by Ralph Senensky. Its name is a reference...
Original air date:
- Mar 15, 1968
Episode number:
- 54
Director:
Shore Leave
"Shore Leave" is a first-season episode of Star Trek: The Original Series. It was first broadcast on December 29, 1966, and repeated on June 8, 1967. It is episode #15, production #17, and was written by science fiction author Theodore Sturgeon, and...
Original air date:
- Dec 29, 1966
Episode number:
- 15
Writer:
The Devil in the Dark
"The Devil in the Dark" is a first-season episode Star Trek: The Original Series which first aired on March 9, 1967. It was repeated on June 15, 1967. It is episode #25, production #26, and was written by Gene L. Coon and directed by Joseph Pevney....
Original air date:
- Mar 9, 1967
Episode number:
- 25
Writer:
Director:
Plato's Stepchildren
"Plato's Stepchildren" is a third season episode of Star Trek: The Original Series, first broadcast November 22, 1968. It is episode #65, production #67, written by Meyer Dolinsky, and directed by David Alexander. The episode is popularly cited as...
Original air date:
- Nov 22, 1968
Episode number:
- 65
Writer:
Balance of Terror
"Balance of Terror", written by Paul Schneider and directed by Vincent McEveety, is a first-season episode of the original Star Trek series that first aired on December 15, 1966. The episode is a science-fiction version of a submarine film; writer...
Original air date:
- Dec 15, 1966
Episode number:
- 14
Writer:
Miri
"Miri" is a first season episode of Star Trek: The Original Series, that was first broadcast October 27, 1966, and repeated June 29, 1967. It is episode #8, production #12, written by Adrian Spies and directed by Vincent McEveety. The planetary...
Original air date:
- Oct 27, 1966
Episode number:
- 8
Day of the Dove
"Day of the Dove" is a third season episode of Star Trek: The Original Series, first broadcast November 1, 1968 and repeated June 17, 1969. It is episode #62, production #66, written by Jerome Bixby and directed by Marvin Chomsky.
Overview: An alien...
Original air date:
- Nov 1, 1968
Episode number:
- 62
Writer:
Is There in Truth No Beauty?
"Is There in Truth No Beauty?" is a third season episode of Star Trek: The Original Series, first broadcast October 18, 1968. It is episode #60, production #62, written by Jean Lisette Aroeste, and directed by Ralph Senensky.
Overview: The...
Original air date:
- Oct 18, 1968
Episode number:
- 60
Writer:
Director:
Assignment: Earth
"Assignment: Earth" is a second season episode of Star Trek: The Original Series. It was first broadcast on March 29, 1968, as the last original episode in the second season. It was repeated on August 9, 1968. It is episode #55, production #55,...
Original air date:
- Mar 29, 1968
Episode number:
- 55
Director:
A Private Little War
"A Private Little War" is a second-season episode of Star Trek: The Original Series, first broadcast February 2, 1968 and repeated on August 23, 1968. It is episode #48, production #45, with the screenplay written by Gene Roddenberry, based on a...
Original air date:
- Feb 2, 1968
Episode number:
- 48
Director:
Whom Gods Destroy
"Whom Gods Destroy" is a third season episode of Star Trek: The Original Series. It is episode #69, production #71, and was broadcast on January 3, 1969. It was written by Lee Erwin, based on a story by Lee Erwin and Jerry Sohl, and directed by Herb...
Original air date:
- Jan 3, 1969
Episode number:
- 69
Writer:
Director:
The Trouble With Tribbles
"The Trouble With Tribbles" is a second-season episode of Star Trek: The Original Series, first broadcast on December 29, 1967 and repeated June 21, 1968. It is episode #44, production #42, and was written by David Gerrold and directed by Joseph...
Original air date:
- Dec 29, 1967
Episode number:
- 44
Writer:
Director:
The Enterprise Incident
"The Enterprise Incident" is a third season episode of Star Trek: The Original Series, first broadcast September 27, 1968 and repeated December 27, 1968. It is episode #57, production #59, written by D.C. Fontana and directed by John Meredyth Lucas....
Original air date:
- Sep 27, 1968
Episode number:
- 57
Writer:
Director:
A Piece of the Action
"A Piece of the Action" is a second-season episode of Star Trek: The Original Series first broadcast on January 12, 1968. It was repeated on August 30, 1968, the last episode to air in the 8:30 pm time slot on Friday nights. It is episode #46,...
Original air date:
- Jan 12, 1968
Episode number:
- 46
Writer:
Director:
The Paradise Syndrome
"The Paradise Syndrome" is a third season episode of Star Trek: The Original Series, and was broadcast October 4, 1968. It is episode #58, production #58, written by Margaret Armen and directed by Jud Taylor.
Overview: An alien device on a primitive...
Original air date:
- Oct 4, 1968
Episode number:
- 58
Director:
Spectre of the Gun
"Spectre of the Gun" (originally 'The Last Gunfight') is an episode from the third season of Star Trek: The Original Series, that was first broadcast on October 25, 1968. It was repeated on April 4, 1969. This show was the last episode to air on NBC...
Original air date:
- Oct 25, 1968
Episode number:
- 61
The Tholian Web
"The Tholian Web" was a third season episode of Star Trek: The Original Series. It is episode #64, production #64, first broadcast on November 15, 1968 and repeated August 19, 1969. It was written by Judy Burns and Chet Richards and directed by Herb...
Original air date:
- Nov 15, 1968
Episode number:
- 64
Director:
Return to Tomorrow
"Return to Tomorrow" is a second season episode of Star Trek: The Original Series, first broadcast February 9, 1968 and repeated August 2, 1968. It is episode #49, production #51, written by John Kingsbridge, and directed by Ralph Senensky.
Overview...
Original air date:
- Feb 9, 1968
Episode number:
- 49
Director:
The Doomsday Machine
"The Doomsday Machine" is a second-season episode of Star Trek: The Original Series. It is episode #35, production #35, and was first broadcast on October 20, 1967. It was repeated on April 19, 1968. It was written by Norman Spinrad, and directed by...
Original air date:
- Oct 20, 1967
Episode number:
- 35
Writer:
Director:
Patterns of Force
"Patterns of Force" is a second season episode of the science fiction television program Star Trek: The Original Series, and was broadcast on February 16, 1968. It is episode #50, production #52, written by John Meredyth Lucas, and directed by...
Original air date:
- Feb 16, 1968
Episode number:
- 50
Writer:
That Which Survives
"That Which Survives" is a third-season episode of Star Trek: The Original Series, first broadcast January 24, 1969 and repeated July 29, 1969. It is episode #72, production #69, written by John Meredyth Lucas, based on a story by Michael Richards ...
Original air date:
- Jan 24, 1969
Episode number:
- 72
Director:
Catspaw
"Catspaw" is an episode of the second season of Star Trek: The Original Series. It is episode #36, production #30, and was first broadcast October 27, 1967. It was repeated on May 24, 1968. It was written by Robert Bloch, and directed by Joseph...
Original air date:
- Oct 27, 1967
Episode number:
- 36
Writer:
Director:
Arena
"Arena" is an episode of Star Trek: The Original Series. It is a first season episode, #18, production #19, first broadcast January 19, 1967 and repeated on July 6, 1967. It was written by Gene L. Coon, based on a short story of the same name by...
Original air date:
- Jan 19, 1967
Episode number:
- 18
Director:
Wolf in the Fold
"Wolf in the Fold" is a second-season episode of Star Trek: The Original Series. It is episode #43, production #36, and was broadcast on December 22, 1967. It was written by Robert Bloch, and directed by Joseph Pevney.
Overview: A series of bizarre...
Original air date:
- Dec 22, 1967
Episode number:
- 43
Writer:
Director:
The Apple
"The Apple" is a second season episode of Star Trek. It is episode #34, production #38, first broadcast on October 13, 1967 and repeated July 12, 1968. It was written by Max Ehrlich, and directed by Joseph Pevney.
Overview: The crew of the...
Original air date:
- Oct 13, 1967
Episode number:
- 34
Director:
Friday's Child
"Friday's Child" is a second season episode of Star Trek: The Original Series. It is episode #40, production #32, and was broadcast December 1, 1967. It was written by D.C. Fontana, and directed by Joseph Pevney.
Overview: The crew of the Enterprise...
Original air date:
- Dec 1, 1967
Episode number:
- 40
Writer:
Director:
The Immunity Syndrome
"The Immunity Syndrome" is a second season episode of Star Trek: The Original Series first broadcast January 19, 1968 and repeated June 7, 1968. It is episode #47, production #48, written by Robert Sabaroff and directed by Joseph Pevney.
Overview:...
Original air date:
- Jan 19, 1968
Episode number:
- 47
Director:
The Gamesters of Triskelion
"The Gamesters of Triskelion" is a second season episode of Star Trek: The Original Series, first broadcast January 5, 1968 and repeated May 3, 1968. It is episode #45, production #46, written by Margaret Armen, and directed by Gene Nelson.
Overview...
Original air date:
- Jan 5, 1968
Episode number:
- 45
Director:
The City on the Edge of Forever
"The City on the Edge of Forever" is the penultimate episode of the first season of Star Trek. It is episode #28, production #28, first broadcast on April 6, 1967. It was repeated on August 31, 1967 and marked the last time NBC aired the series on...
Original air date:
- Apr 6, 1967
Episode number:
- 28
Director:
Who Mourns for Adonais?
"Who Mourns for Adonais?" is a second season episode of Star Trek: The Original Series. It is episode #31, production #33, first broadcast September 22, 1967 and repeated May 10, 1968. It was written by Gilbert Ralston and Gene L. Coon, and directed...
Original air date:
- Sep 22, 1967
Episode number:
- 31
Director:
Spock's Brain
"Spock's Brain" is a third season episode of Star Trek: The Original Series, first broadcast September 20, 1968. It was the first episode of the third season and the first to air after NBC moved the show from 8:30 P.M. to 10 P.M. on Friday nights....
Original air date:
- Sep 20, 1968
Episode number:
- 56
