Star Trek: The Original Series (season 3)

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Star Trek: The Original Series (season 3)
Country of origin United States
No. of episodes 24
Original channel NBC
Original run September 20, 1968 (1968-09-20) – June 3, 1969 (1969-06-03)
Home video release
DVD release
Region 1 December 14, 2004 (2004-12-14) (Original)
November 18, 2008 (2008-11-18) (Remastered)
Region 2 December 6, 2004 (2004-12-06) (Original)
April 27, 2009 (2009-04-27) (Remastered)
Blu-ray Disc release
Region A December 15, 2009 (2009-12-15)
Region B March 22, 2010 (2010-03-22)
Season chronology
← Previous
Season 2
Next →
List of Star Trek: The Original Series episodes

The third and final season of the original Star Trek aired Fridays at 10:00-11:00 pm (EST) on NBC from September 20, 1968 to March 14, 1969. The final episode aired Tuesday, June 3, 1969 at 7:30-8:30 pm (EST).


No. in
No. in
Title Stardate[1] Directed by Written by Original airdate[2] Production
56 1 "Spock's Brain" 5431.4 Marc Daniels Lee Cronin September 20, 1968 (1968-09-20) 61
Captain Kirk pursues aliens who have stolen Spock's brain.[3] 
57 2 "The Enterprise Incident" 5027.3 John Meredyth Lucas D. C. Fontana September 27, 1968 (1968-09-27) 59
The crew of the Enterprise attempts to steal a Romulan cloaking device.[3] 
58 3 "The Paradise Syndrome" 4842.6 Jud Taylor Margaret Armen October 4, 1968 (1968-10-04) 58
A mysterious alien device on a planet with a predominantly American Indian culture erases Captain Kirk's memory, and he begins a life with them as a member of their tribe.[3] 
59 4 "And the Children Shall Lead" 5029.5 Marvin Chomsky Edward J. Lakso October 11, 1968 (1968-10-11) 60
The crew of the Enterprise rescues a group of children stranded on a planet, along with their evil "imaginary" friend.[3] 
60 5 "Is There in Truth No Beauty?" 5630.7 Ralph Senensky Jean Lisette Aroeste October 18, 1968 (1968-10-18) 62
The Enterprise travels with an alien ambassador who must travel inside a special black case because his appearance causes insanity.[3] 
61 6 "Spectre of the Gun" 4385.3 Vincent McEveety Lee Cronin October 25, 1968 (1968-10-25) 56
For trespassing on an alien world, Captain Kirk and his companions are forced to re-enact the famous shoot-out at the O.K. Corral with themselves cast as the losing side.[3] 
62 7 "Day of the Dove" Unknown Marvin Chomsky Jerome Bixby November 1, 1968 (1968-11-01) 66
An alien energy-based life form that feeds on negative emotions (such as fear, anger, hatred) drives the crew of the Enterprise into brutal conflict with the Klingons.[3] 
63 8 "For the World Is Hollow and I Have Touched the Sky" 5476.3 Tony Leader Rik Vollaerts November 8, 1968 (1968-11-08) 65
As McCoy discovers he is dying of an incurable disease, the crew of the Enterprise rush to stop an asteroid from colliding with a Federation world, only to discover that the asteroid is, in fact, a disguised alien vessel. They find an entire civilization living in the ship who believe they are actually on a planet and a dictatorial "Oracle" who forbids any attempt to discover the truth.[3] 
64 9 "The Tholian Web" 5693.2 Herb Wallerstein Judy Burns and Chet Richards November 15, 1968 (1968-11-15) 64
Captain Kirk is caught between dimensions while the Enterprise is trapped by an energy draining web spun by mysterious aliens. A sequel to this episode is In a Mirror Darkly, the second to last major story arc of the final season of Star Trek Enterprise [3] 
65 10 "Plato's Stepchildren" 5784.2 David Alexander Meyer Dolinsky November 22, 1968 (1968-11-22) 67
The crew of the Enterprise encounters an ageless and mischievous race of psychic humanoids who claim to have organized their society around Ancient Greek ideals.[3] 
66 11 "Wink of an Eye" 5710.5 Jud Taylor Teleplay: Arthur Heinemann
Story: Lee Cronin
November 29, 1968 (1968-11-29) 68
Invisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".[3] 
67 12 "The Empath" 5121.5 John Erman Joyce Muskat December 6, 1968 (1968-12-06) 63
While visiting a doomed planet, the landing party is subject to torturous experiments to test an empathic race.[3] 
68 13 "Elaan of Troyius" 4372.5 John Meredyth Lucas John Meredyth Lucas December 20, 1968 (1968-12-20) 57
Captain Kirk hosts a spoiled princess, who must bring peace to a star system at war.[3] 
69 14 "Whom Gods Destroy" 5718.3 Herb Wallerstein Teleplay: Lee Erwin
Story: Lee Erwin and Jerry Sohl
January 3, 1969 (1969-01-03) 71
Captain Kirk visits a mental health facility and confronts an insane starship captain who believes he is destined to control the universe.[3] 
70 15 "Let That Be Your Last Battlefield" 5730.2 Jud Taylor Teleplay: Oliver Crawford
Story: Lee Cronin
January 10, 1969 (1969-01-10) 70
The Enterprise picks up the last two survivors of a war-torn planet who are still committed to destroying each other aboard the ship.[3] 
71 16 "The Mark of Gideon" 5423.4 Jud Taylor George F. Slavin and Stanley Adams January 17, 1969 (1969-01-17) 72
An overpopulated race of aliens abduct Kirk to solve their problem.[3] 
72 17 "That Which Survives" Unknown Herb Wallerstein Teleplay: John Meredyth Lucas
Story: Michael Richards
January 24, 1969 (1969-01-24) 69
The crew of the Enterprise visits an abandoned outpost guarded by a mysterious computer.[3] 
73 18 "The Lights of Zetar" 5725.3 Herb Kenwith Jeremy Tarcher and Shari Lewis January 31, 1969 (1969-01-31) 73
Strange, energy-based alien life forms threaten the Memory Alpha station and the Enterprise crew.[3] 
74 19 "Requiem for Methuselah" 5843.7 Murray Golden Jerome Bixby February 14, 1969 (1969-02-14) 76
The crew of the Enterprise encounters an immortal human who lives as a recluse on his own planet.[3] 
75 20 "The Way to Eden" 5832.3 David Alexander Teleplay: Arthur Heinemann
Story: Michael Richards and Arthur Heinemann
February 21, 1969 (1969-02-21) 75
The Enterprise is hijacked by a criminal doctor and his loyal, hippie-like followers who are attempting to find paradise.[3] 
76 21 "The Cloud Minders" 5818.4 Jud Taylor Teleplay: Margaret Armen
Story: David Gerrold and Oliver Crawford
February 28, 1969 (1969-02-28) 74
Kirk races against time to acquire plague-fighting minerals from a world in the midst of a civil uprising.[3] 
77 22 "The Savage Curtain" 5906.4 Herschel Daugherty Teleplay: Arthur Heinemann and Gene Roddenberry
Story: Gene Roddenberry
March 7, 1969 (1969-03-07) 77
Aliens force Kirk and Spock to battle illusionary villains in a test of good versus evil.[3] 
78 23 "All Our Yesterdays" 5943.7 Marvin Chomsky Jean Lisette Aroeste March 14, 1969 (1969-03-14) 78
Kirk, Spock, and McCoy are trapped in the past on a world threatened by a nova.[3] 
79 24 "Turnabout Intruder" 5928.5 Herb Wallerstein Teleplay: Arthur Singer
Story: Gene Roddenberry
June 3, 1969 (1969-06-03) 79
Kirk's consciousness becomes trapped in the body of a woman bent on killing him and taking over his command while inhabiting his body.[3] 


  1. ^ Trimble, Bjo (1976). Star Trek Concordance. New York: Ballantine Books. pp. 12–13. ISBN 0-345-25137-7. 
  2. ^ Trimble, Bjo (1976). Star Trek Concordance. New York: Ballantine Books. pp. 37–89. ISBN 0-345-25137-7. 
  3. ^ a b c d e f g h i j k l m n o p q r s t u v w x "Star Trek: Episodes (Season 3)". Archived from the original on 2009-06-09. Retrieved 2009-06-04.