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Star Trek

TV·1966–1969·3 seasons, 79 episodes·NBC·Action, Adventure, Science-Fiction·1h·8.4·Created by Gene Roddenberry

Streaming on (US) Paramount Plus PremiumSee all

The original Star Trek series focuses on the 23rd century adventures of Captain James T. Kirk and the U.S.S. Enterprise (NCC-1701), a powerful interstellar spacecraft dispatched by Earth-based Starfleet Command to explore the galaxy. Kirk commands a crew of 430 men and women aboard his starship, which can travel at speeds surpassing the speed of light. Kirk's five-year mission—and his mandate from Starfleet—is to seek out new life and new civilizations, and to boldly go where no man has gone before.

Highest-rated episodes all ranked

  1. 01Star Trek S02E15The Trouble with TribblesS02E15 · 8.9Under the terms of the Organian Peace Treaty, Sherman's Planet will become a colony of whoever can best develop it. To that end, the Federation intends to ship a large quantity of quadrotriticale to that planet, and Federation Undersecretary Nilz Baris is determined that the grain will arrive, so he orders the manager of Space Station K-9 to issue a distress call! Enterprise responds to discover no emergency; Baris just wants guards for his grain. And then a Klingon ship arrives, seeking shore leave. And Cyrano Jones, an itinerant trader, also arrives, with some odd animals he calls tribbles. Some very hungry, odd animals...
  2. 02Star Trek S01E28The City on the Edge of ForeverS01E28 · 8.8Ripples in time have provoked the curiosity of the Enterprise crew. One such ripple shakes the ship and gravely injures Sulu. McCoy brings him back from the brink with a powerful drug, but another ripple results in a tragic overdose, afflicting McCoy with dangerous paranoia! He beams down to the planet - the transporter was locked onto the source of the time disturbances. On the surface, he evades the landing party long enough to flee - into the past, where his psychosis results in him somehow erasing the Federation, and the Enterprise, save only the landing party. Their one chance is to use the same artifact - the self-styled Guardian of Forever - to arrive before McCoy and prevent him from changing their history.
  3. 03Star Trek S02E10Journey to BabelS02E10 · 8.8A large diplomatic conference will take place on Babel, to discuss the contentious issue of whether to admit Corridan to the Federation. Delegates are divided, and some of their motives are less than pure. Among these delegates is Sarek of Vulcan - Spock's estranged father. Add a mysterious challenging spacecraft and a murderer aboard the Enterprise, and Kirk has his hands full. Then Kirk himself is stabbed, leaving him seriously injured at the very moment when Spock is due to donate blood so that McCoy can operate on Vulcan ambassador Sarek's damaged heart. The key to solving this puzzle will require deducing which of the many factions is willing to go to violent lengths to sabotage this conference.

Cast

Episodes by season

Season01Episode ratings across the season — the gold bar is its best episode29Episodes1966–67Aired 7.7Season avg
  1. S01E01Star Trek S01E01The Man TrapSeptember 8, 1966 7.3Professor Robert Crater and his wife Nancy are archeologists, investigating the ruins of a civilization on M-113. Enterprise visits for the
  2. S01E02Star Trek S01E02Charlie XSeptember 15, 1966 7.4A small ship, the Antares, transfers a passenger to Enterprise. He is Charles Evans, recently recovered from the lifeless planet Thasus, hav
  3. S01E03Star Trek S01E03Where No Man Has Gone BeforeSeptember 22, 1966 7.8Enterprise recovers the pitted and burned emergency buoy from the wreckage of Valiant which penetrated the odd energy barrier that surrounds
  4. S01E04Star Trek S01E04The Naked TimeSeptember 29, 1966 7.8Psi-2000 is a lifeless, frozen world in the final stages of planetary disintegration, an invaluable opportunity for scientific study. But th
  5. S01E05Star Trek S01E05The Enemy WithinOctober 6, 1966 7.7An odd, yellowish ore with magnetic properties on a crewman's clothing affects the transporter, and when Kirk is subsequently beamed up, he
  6. S01E06Star Trek S01E06Mudd's WomenOctober 13, 1966 6.8The Enterprise recovers Harcourt Fenton Mudd from within an asteroid belt. His crew is also his cargo - wives for settlers on Ophiuchus III.
  7. S01E07Star Trek S01E07What Are Little Girls Made of?October 20, 1966 7.5Roger Korby, described as the "Pasteur of archaeological medicine" has built a reputation recovering the knowledge of dead alien civilizatio
  8. S01E08Star Trek S01E08MiriOctober 27, 1966 7.3Enterprise discovers a planet identical to Earth, with a very important exception: a few centuries earlier, a devasting plague struck. All o
  9. S01E09Star Trek S01E09Dagger of the MindNovember 3, 1966 7.6Enterprise stops at the Tantalus penal colony to deliver drugs and collect research materials. Except that the research materials box contai
  10. S01E10Star Trek S01E10The Corbomite ManeuverNovember 10, 1966 7.9Mapping star systems, Enterprise encounters an odd cube. Apparently solid, it senses the ship, moves to block it - and when Enterprise attem
  11. S01E11Star Trek S01E11The Menagerie Part INovember 17, 1966 7.9Spock diverts the Enterprise to Starbase 11, where Kirk discovers that Spock's former commander, Christopher Pike, has been seriously injure
  12. S01E12Star Trek S01E12The Menagerie Part IINovember 24, 1966 7.8As the court martial continues, Kirk learns the Talosians meant to breed Pike with an earlier survivor, Vina, to produce their slave race. B
  13. S01E13Star Trek S01E13The Conscience of the KingDecember 8, 1966 6.7Dr. Leighton calls Enterprise to his home on Planet Q with the promise of a new food source that could end hunger. But this is a ruse: Leigh
  14. S01E14Star Trek S01E14Balance of TerrorDecember 15, 1966 8.0The Enterprise tries to intercept a Romulan warship that is testing the Federation's defenses along the Neutral Zone separating the two.
  15. S01E15Star Trek S01E15Shore LeaveDecember 29, 1966 7.2Enterprise visits an idyllic planet, where McCoy encounters a large white rabbit that is "very late". And shortly afterwards, a little girl
  16. S01E16Star Trek S01E16The Galileo SevenJanuary 5, 1967 7.1Enterprise is en route to the New Paris colony to deliver much needed medical supplies, needed to counter a plague. It passes Murasaki 312,
  17. S01E17Star Trek S01E17The Squire of GothosJanuary 12, 1967 7.5Within a "star desert" the crew encounter the odd, storm-wracked planet Gothos. Then Kirk and Sulu disappear from the bridge. The planet's s
  18. S01E18Star Trek S01E18ArenaJanuary 19, 1967 7.4Enterprise stops at Cestus III, there to visit Commodore Travers, who enthusiastically invites Kirk to bring his key people to the surface.
  19. S01E19Star Trek S01E19Tomorrow Is YesterdayJanuary 26, 1967 8.0A "black star" slingshots Enterprise back in time, to the 1960s, in Earth orbit. She appears almost directly above a military base, which dr
  20. S01E20Star Trek S01E20Court MartialFebruary 2, 1967 7.9Enterprise encounters an ion storm, which requires an observer in the ion pod. Top of the duty roster is Commander Ben Finney, who is tragic
  21. S01E21Star Trek S01E21The Return of the ArchonsFebruary 9, 1967 7.3Six thousand years ago, the planet Beta III was torn apart by war, crime, and corruption. Then a visionary leader arose, Landru, who became
  22. S01E22Star Trek S01E22Space SeedFebruary 16, 1967 8.4The Enterprise chances across a DY-100 class ship, launched from Earth "in the 1990s". It carries around seventy people, who have been hiber
  23. S01E23Star Trek S01E23A Taste of ArmageddonFebruary 23, 1967 7.9Kirk and the Enterprise have been sent to establish diplomatic relations with the planet Eminiar VII, a planet that decidedly does not wish
  24. S01E24Star Trek S01E24This Side of ParadiseMarch 2, 1967 7.5The Federation established a colony on Omicron Ceti III before it knew that the system's star emitted Berthold Rays, which degrade animal ti
  25. S01E25Star Trek S01E25The Devil in the DarkMarch 9, 1967 8.3Miners on the mineral rich world of Janus II have begun to die horribly, burned to a crisp by the effects of a powerful corrosive. The Feder
  26. S01E26Star Trek S01E26Errand of MercyMarch 23, 1967 8.1Kirk and Spock transport to the planet Organia, a pastoral realm of very low technology, which has the misfortune of being strategically imp
  27. S01E27Star Trek S01E27The Alternative FactorMarch 30, 1967 7.2An alien named Lazarus is somehow responsible for a kind of "winking out" effect - all of reality seems on the verge of collapse. He is flee
  28. S01E28Star Trek S01E28Season's bestThe City on the Edge of ForeverApril 6, 1967 8.8Ripples in time have provoked the curiosity of the Enterprise crew. One such ripple shakes the ship and gravely injures Sulu. McCoy brings h
  29. S01E29Star Trek S01E29Operation: Annihilate!April 13, 1967 8.4Approaching the planet Deneva, the Enterprise encounters a private spacecraft whose pilot is flying desperately into the sun, the apparent a

Season 1 ranked & reviewed

Season02Best seasonEpisode ratings across the season — the gold bar is its best episode26Episodes1967–68Aired 7.9Season avg
  1. S02E01Star Trek S02E01Amok TimeSeptember 15, 1967 8.4Spock is becoming increasing irrational, even threatening to break McCoy's neck! He can't or won't explain this behavior to Kirk, only askin
  2. S02E02Star Trek S02E02Who Mourns for Adonais?September 22, 1967 7.2Enterprise nears the planet Pollux IV, when an immense humanoid hand appears and seizes the ship! It is not actually living tissue, but a co
  3. S02E03Star Trek S02E03The ChangelingSeptember 29, 1967 8.1A space probe of immense power and sophisticated technology has apparently annihilated the entire Malurian civilization, and now threatens E
  4. S02E04Star Trek S02E04Mirror, MirrorOctober 6, 1967 8.6The Halkans are a people deeply committed to peace. Kirk is trying to negotiate with them for dilithium, the rare mineral that's needed for
  5. S02E05Star Trek S02E05The AppleOctober 13, 1967 7.4Gamma Trianguli VI is a peaceful planet with abundant plant life. It seems a paradise, but the landing party soon feels the thorns: poisonou
  6. S02E06Star Trek S02E06The Doomsday MachineOctober 20, 1967 8.6Enterprise discovers the wreck of Constellation, a sister ship. The only survivor is Matt Decker, the Captain. He reports beaming his crew d
  7. S02E07Star Trek S02E07CatspawOctober 27, 1967 7.6Sulu, Scotty and Jackson explore Pyrus VII, and then Jackson calls the ship, "one to beam up". He materializes dead, and a sepulchral voice
  8. S02E08Star Trek S02E08I, MuddNovember 3, 1967 7.7Mr. Norman is a new crewmember whom McCoy finds off-putting. He acts like a Vulcan, which is odd in a human. There's a good reason: Mr. Norm
  9. S02E09Star Trek S02E09MetamorphosisNovember 10, 1967 7.6Enterprise sends a shuttlecraft to retrieve Federation Commissioner Nancy Hedford, who suffers from Sakuro's Disease, so that she may be tre
  10. S02E10Star Trek S02E10Journey to BabelNovember 17, 1967 8.8A large diplomatic conference will take place on Babel, to discuss the contentious issue of whether to admit Corridan to the Federation. Del
  11. S02E11Star Trek S02E11Friday's ChildDecember 1, 1967 7.8The Federation sends Kirk to negotiate for mining rights with Aka'ar, Te'er of the Ten Tribes of Capella IV. Capella IV has deposits of the
  12. S02E12Star Trek S02E12The Deadly YearsDecember 8, 1967 7.8Enterprise discovers the scientists on Gamma Hydra IV are all either dead or dying of old age, despite the fact that the oldest was around t
  13. S02E13Star Trek S02E13ObsessionDecember 15, 1967 7.3On an obscure planet, Kirk smells something that reminds him of the past. And then two crewman die, their ghastly pallor betraying the fact
  14. S02E14Star Trek S02E14Wolf in the FoldDecember 22, 1967 7.5Kirk takes Scotty to Argelius, a planet renowed for hospitality. Scotty is still recovering from serious injuries accounted to a female memb
  15. S02E15Star Trek S02E15Season's bestThe Trouble with TribblesDecember 29, 1967 8.9Under the terms of the Organian Peace Treaty, Sherman's Planet will become a colony of whoever can best develop it. To that end, the Federat
  16. S02E16Star Trek S02E16The Gamesters of TriskelionJanuary 5, 1968 7.1Kirk, Uhura and Chekov are set to beam down to examine and maintain a communications relay station, when they vanish from the transporter ro
  17. S02E17Star Trek S02E17A Piece of the ActionJanuary 12, 1968 7.3The Horizon visited the planet Iotia a hundred years ago, long before the Prime Directive forbid interference in pre-warp alien cultures. Be
  18. S02E18Star Trek S02E18The Immunity SyndromeJanuary 19, 1968 8.2Spock senses the crew of Intrepid, a starship crewed solely by Vulcans, die. Enterprise investigates, and discovers a zone of darkness which
  19. S02E19Star Trek S02E19A Private Little WarFebruary 2, 1968 7.4Kirk returns to a planet he surveyed years ago as a younger officer. There he discovers that the villagers and the hill people are now fight
  20. S02E20Star Trek S02E20Return to TomorrowFebruary 9, 1968 8.4Enterprise responds to odd readings, which lead the crew to a planet similar to Earth, except that it is much older, and a cataclysm strippe
  21. S02E21Star Trek S02E21Patterns of ForceFebruary 16, 1968 8.0Historian and sociologist John Gill has stopped responding to transmissions. He is embedded in the Ekosian population to study it. Investiga
  22. S02E22Star Trek S02E22By Any Other NameFebruary 23, 1968 7.9Kelvans from the Andromeda galaxy have discovered that rising radiation levels will make their galaxy uninhabitable within ten millenia. So
  23. S02E23Star Trek S02E23The Omega GloryMarch 1, 1968 7.1Enterprise discovers her sister ship, Exeter in orbit around a planet, unresponsive. Kirk, Spock and McCoy beam aboard and discover only emp
  24. S02E24Star Trek S02E24The Ultimate ComputerMarch 8, 1968 7.9Enterprise is chosen as the testbed for the revolutionary M-5 computer. The machine's inventor, Richard Daystrom, claims it can take control
  25. S02E25Star Trek S02E25Bread and CircusesMarch 15, 1968 7.2The Enterprise follows the wreckage of the S.S. Beagle to a planet where they discover an Earth-like civilization, except that Rome never fe
  26. S02E26Star Trek S02E26Assignment: EarthMarch 29, 1968 8.5The Enterprise has used the "light speed breakaway" technique to travel to Earth in the year 1968, to study how humans survived the desperat

Season 2 ranked & reviewed

Season03Episode ratings across the season — the gold bar is its best episode24Episodes1968–69Aired 7.5Season avg
  1. S03E01Star Trek S03E01Spock's BrainSeptember 20, 1968 7.7An alien lady materializes on the bridge of the Enterprise and knocks the command crew unconscious. When they come to, they discover that Sp
  2. S03E02Star Trek S03E02Season's bestThe Enterprise IncidentSeptember 27, 1968 8.5Captain Kirk acts strangely and ends up taking the ship into the Romulan neutral zone where they are surrounded by Romulans, the Romulan com
  3. S03E03Star Trek S03E03The Paradise SyndromeOctober 4, 1968 7.6Mr. Spock must destroy an asteroid threatening a primitive world where lost and amnesiac Captain Kirk has taken a wife.
  4. S03E04Star Trek S03E04And the Children Shall LeadOctober 11, 1968 7.1A group of orphaned children under an alien's control take over the minds of the Enterprise crew.
  5. S03E05Star Trek S03E05Is There in Truth No Beauty?October 18, 1968 7.2Only a jealous scientist can save Spock when he goes mad after seeing a hideous Medusan.
  6. S03E06Star Trek S03E06Spectre of the GunOctober 25, 1968 7.3Powerful aliens transport the Enterprise officers into an illusionary re-creation of the gunfight at the OK Corral.
  7. S03E07Star Trek S03E07Day of the DoveNovember 1, 1968 7.0An alien which feeds on violence traps Klingons and Enterprise crewman together.
  8. S03E08Star Trek S03E08For the World is Hollow and I Have Touched the SkyNovember 8, 1968 7.5After Dr. McCoy informs Captain Kirk that he is dying, the Enterprise crew discovers a planetoid that is on a collision course with a inhabi
  9. S03E09Star Trek S03E09The Tholian WebNovember 15, 1968 8.0Kirk is trapped on a disintegrating star ship and drifts between dimensions while the Tholian's create a energy web around the Enterprise to
  10. S03E10Star Trek S03E10Plato's StepchildrenNovember 22, 1968 7.7Rulers of a culture modeled after Platos Republic kidnap Kirk, Spock and Dr. McCoy.
  11. S03E11Star Trek S03E11Wink of an EyeNovember 29, 1968 8.1The dying Scalosians, invisible to humans, need the Enterprise crew to help repopulate their decimated planet.
  12. S03E12Star Trek S03E12The EmpathDecember 6, 1968 7.1After arriving at a outpost to pick up the two members of a science team, Kirk, McCoy and Spock find the team missing. They are then transpo
  13. S03E13Star Trek S03E13Elaan of TroyiusDecember 20, 1968 7.7Klingons interfere when the Enterprise is ordered to transport an unwilling royal bride to her wedding in another star system. During the tr
  14. S03E14Star Trek S03E14Whom Gods DestroyJanuary 3, 1969 7.2Inmates gain control of an insane asylum, taking visiting Kirk and Spock prisoner.
  15. S03E15Star Trek S03E15Let That Be Your Last BattlefieldJanuary 10, 1969 7.3A thousand-year feud between sworn enemies threatens to destroy the Enterprise.
  16. S03E16Star Trek S03E16The Mark of GideonJanuary 17, 1969 7.5Captain Kirk suddenly finds himself on what appears to be the Enterprise, alone except for a beautiful alien woman while on a away mission t
  17. S03E17Star Trek S03E17That Which SurvivesJanuary 24, 1969 7.6The Enterprise discovers a planet that defies the conventional theories of planetology, so Kirk, Sulu, McCoy and D'Amato (a geologist) beam
  18. S03E18Star Trek S03E18The Lights of ZetarJanuary 31, 1969 7.1A mysterious storm has inflicted heavy - perhaps irreparable - damage on the library planetoid Memory Alpha. And it seems to have a curious
  19. S03E19Star Trek S03E19Requiem for MethuselahFebruary 14, 1969 7.5Rigelian Fever rages about the Enterprise; on a small planet named Holberg 917G, the crew has discovered a source of the only cure, ryetalin
  20. S03E20Star Trek S03E20The Way to EdenFebruary 21, 1969 7.1The Enterprise intercepts a stolen space yacht, whose thieves destroy it rather than face capture. But they are captured, and revealed as "c
  21. S03E21Star Trek S03E21The Cloud MindersFebruary 28, 1969 7.8The planet Merek II is gripped by a botanical plague. The only cure is the mineral zeenite, and the only practical source of that is Ardana.
  22. S03E22Star Trek S03E22The Savage CurtainMarch 7, 1969 8.2The Enterprise surveys the planet Excalbia. As its surface is the temperature of molten rock, no landing party is possible, so when the orbi
  23. S03E23Star Trek S03E23All Our YesterdaysMarch 14, 1969 7.9While trying to locate the missing population of a planet doomed by a coming nova, Kirk, Spock, and McCoy find a mysterious librarian who se
  24. S03E24Star Trek S03E24Turnabout IntruderJune 3, 1969 7.1Janice Lester, a lover from Kirk's past, uses alien technology to switch her consciousness into his body and vice versa, so that she can tak

Season 3 ranked & reviewed

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