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Star Trek: The Original Series episode guide: PalmPilot Episode Guide (Requires JFile 5.5).
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Prequels
The Cage (Black & White edition)
Published:
VHS: ST:TOS VHS 1.1
LD: ST:TOS LaserDisc Volume 26
DVD: ST:TOS DVD Volume 40
Ten years before James T. Kirk takes command of the U.S.S. Enterprise, Captain Christopher Pike starship crew receive a distress signal from the planet Talos IV and beam down to investigate. Tracking the beacon, the landing party discovers crash survivors fr
The Cage (Colour edition) Ten years before James T. Kirk takes command of the U.S.S. Enterprise, Captain Christopher Pike starship crew receive a distress signal from the planet Talos IV and beam down to investigate. Tracking the beacon, the landing party discovers crash survivors fr
1st season
Where No Man Has Gone Before
Star Date 1312.4
Org. Air Date: 22 Sep 1966
Published:
VHS: ST:TOS VHS 1.1
LD: ST:TOS LaserDisc Volume 02
DVD: ST:TOS DVD Volume 01
Some years before this second pilot, the S.S. Valiant had encountered a unknown energy barrier at the rim of the galaxy. Something had then made its captain destroy his ship.

The U.S.S. Enterprise finds the Valiant's disaster record-marker, which reveal
The Corbomite Maneuver
Star Date 1512.2
Org. Air Date: 10 Nov 1966
Published:
VHS: ST:TOS VHS 1.1
LD: ST:TOS LaserDisc Volume 05
DVD: ST:TOS DVD Volume 01
While exploring an uncharted region of space, the U.S.S. Enterprise comes upon an alien space buoy which is cube-shaped and spins, warning ships away and blocking the starship's path. Kirk's orders the phasers to destroy the buoy but immediately an alien'
Mudd's Women
Star Date 1329.1
Org. Air Date: 13 Oct 1966
Published:
VHS: ST:TOS VHS 1.2
LD: ST:TOS LaserDisc Volume 03
DVD: ST:TOS DVD Volume 02
The U.S.S. Enterprise pursues an unknown ship into an asteroid belt to save its crew before it's destroyed. The four people aboard are beamed on to the U.S.S. Enterprise; former nemesis, Harry Mudd and three beautiful, sultry women: Ruth Bonaventure, Ev
The Enemy Within
Star Date 1672.1
Org. Air Date: 06 Oct 1966
Published:
VHS: ST:TOS VHS 1.2
LD: ST:TOS LaserDisc Volume 03
DVD: ST:TOS DVD Volume 02
While orbiting the planet Alpha 177, the U.S.S. Enterprise experiences a transporter malfunction when Technician Fisher is beamed up from the planet with some magnetic ore on his clothing. Scotty checks the transporter and finds nothing wrong, so Captain
The Man Trap
Star Date 1513.1
Org. Air Date: 08 Sep 1966
Published:
VHS: ST:TOS VHS 1.2
LD: ST:TOS LaserDisc Volume 01
DVD: ST:TOS DVD Volume 03
The U.S.S. Enterprise arrives at planet M-113 to deliver supplies to Dr. Robert Crater and his wife, Nancy, whom Doctor Leonard McCoy was once romantically involved with. The Craters have been on M-113 for five years conducting an archeological survey of
The Naked Time
Star Date 1704.2
Org. Air Date: 29 Sep 1966
Published:
VHS: ST:TOS VHS 1.3
LD: ST:TOS LaserDisc Volume 02
DVD: ST:TOS DVD Volume 03
Spock and Joe Tormolen beam down to planet Psi 2000 to pick up a research party before the planet disintegrates. They find everyone has died, frozen when life support was turned off. Even stranger, the positions of the researcher's bodies show they were o
Charlie X
Star Date 1533.6
Org. Air Date: 15 Sep 1966
Published:
VHS: ST:TOS VHS 1.3
LD: ST:TOS LaserDisc Volume 01
DVD: ST:TOS DVD Volume 04
As Charles Evans, the lone survivor of a crashed colonizing expedition to the planet Thasus, comes aboard the U.S.S. Enterprise from the S.S. Antares, but when Captain Ramart of the Antares contacts Kirk about Charlie, the
Balance of Terror
Star Date 1709.2
Org. Air Date: 15 Dec 1966
Published:
VHS: ST:TOS VHS 1.3
LD: ST:TOS LaserDisc Volume 06
DVD: ST:TOS DVD Volume 04
The marriage of Angela Martine and Robert Tomlinson is interrupted when a Romulan warbird attacks and destroys Outpost 4, which guards the Neutral Zone between Federation and Romulan space. Kirk learns that the Romulan ship has also destroyed three other
What are Little Girls Made of?
Star Date 2712.4
Org. Air Date: 20 Oct 1966
Published:
VHS: ST:TOS VHS 1.4
LD: ST:TOS LaserDisc Volume 04
DVD: ST:TOS DVD Volume 05
The U.S.S. Enterprise arrives in orbit around Exo III, to search for exobiologist Dr. Roger Korby. When Kirk asks Spock if Korby could possibly still be alive, Spock glances at Christine, then quietly shuts off his monitor. Christine Chapel, McCoy's chief nu
Dagger of the Mind
Star Date 2715.1
Org. Air Date: 03 Nov 1966
Published:
VHS: ST:TOS VHS 1.4
LD: ST:TOS LaserDisc Volume 05
DVD: ST:TOS DVD Volume 05
When Dr. Simon van Gelder, part of the psychiatric staff at the Tantalus Penal Colony escapes to the U.S.S. Enterprise, exhibiting signs of manic insanity, an enraged McCoy insists that Kirk investigate the colony. The Captain reminds McCoy of Tantalus' excel
Miri
Star Date 2713.5
Org. Air Date: 27 Oct 1966
Published:
VHS: ST:TOS VHS 1.4
LD: ST:TOS LaserDisc Volume 04
DVD: ST:TOS DVD Volume 06
The U.S.S. Enterprise answers an old distress signal to find an unnamed planet that is almost an exact duplicate of Earth in the 1960s. A landing party beams down and discovers that 300 years before, the natives of the planet had conducted experiments to
The Conscience of the King
Star Date 2817.6
Org. Air Date: 08 Dec 1966
Published:
VHS: ST:TOS VHS 1.5
LD: ST:TOS LaserDisc Volume 06
DVD: ST:TOS DVD Volume 06
Twenty-two years before stardate 2817.6, the governor of Tarsus IV, Kodos, evoked emergency martial law and ordered half of the planet's population executed. His intent was to address a severe food shortage on Tarsus IV, and it earned him the name "Kodos
The Galileo Seven
Star Date 2821.5
Org. Air Date: 05 Jan 1967
Published:
VHS: ST:TOS VHS 1.5
LD: ST:TOS LaserDisc Volume 07
DVD: ST:TOS DVD Volume 07
On its way to deliver medical supplies to plague-ridden Hansen's Planet, the U.S.S. Enterprise passes Murasaki 312. Since they are under Starfleet orders to inspect galactic phenomena such as this quasarlike star group, McCoy, Rol
Court Martial
Star Date 2947.3
Org. Air Date: 02 Feb 1967
Published:
VHS: ST:TOS VHS 1.5
LD: ST:TOS LaserDisc Volume 09
DVD: ST:TOS DVD Volume 07
When the U.S.S. Enterprise puts in at Starbase 11 for repairs caused in an ion storm, Kirk gives his report of the circumstances of Lieutenant Commander Ben Finney's death to Commodore Stone. All goes well until Spock arrives w
The Menagerie I
Star Date 3012.4
Org. Air Date: 17 Nov 1966
Published:
VHS: ST:TOS VHS 1.6
LD: ST:TOS LaserDisc Volume 41
DVD: ST:TOS DVD Volume 08
The U.S.S. Enterprise and her crew are diverted by a signal from the former captain of the U.S.S. Enterprise on Starbase 6, and proceed to the call. When they arrive they find Captain Christopher Pike, who is severely crippled by radiation burns, confined to a
The Menagerie II
Star Date 3013.1
Org. Air Date: 24 Nov 1966
Published:
VHS: ST:TOS VHS 1.6
LD: ST:TOS LaserDisc Volume 41
DVD: ST:TOS DVD Volume 08
The U.S.S. Enterprise and her crew are diverted by a signal from the former captain of the U.S.S. Enterprise on Starbase 6, and proceed to the call. When they arrive they find Captain Christopher Pike, who is severely crippled by radiation burns, confined to a
Shore Leave
Star Date 3025.3
Org. Air Date: 29 Dec 1966
Published:
VHS: ST:TOS VHS 1.6
LD: ST:TOS LaserDisc Volume 07
DVD: ST:TOS DVD Volume 09
A U.S.S. Enterprise landing party beams down to an uncharted planet. The planet seems like a perfect candidate for shore leave with its "Earth-type" characteristics. Kirk sends McCoy down with the party to check it out.

McCoy's
The Squire of Gothos
Star Date 2124.5
Org. Air Date: 12 Jan 1967
Published:
VHS: ST:TOS VHS 1.7
LD: ST:TOS LaserDisc Volume 08
DVD: ST:TOS DVD Volume 09
The U.S.S. Enterprise must cross an empty sector of space on their way to deliver supplies to colony Beta VI. In this space, they find an uncharted planet whose presence can't be explained. After Kirk and Sulu disappear without a
Arena
Star Date 3045.6
Org. Air Date: 19 Jan 1967
Published:
VHS: ST:TOS VHS 1.7
LD: ST:TOS LaserDisc Volume 08
DVD: ST:TOS DVD Volume 10
The U.S.S. Enterprise is in pursuit of an unknown alien ship which has destroyed a Starfleet base on Cestus III. In an uncharted area of space, both the alien ship and the Enterprise are caught by an advanced race called Metrons. The Metrons are angry at
The Alternative Factor
Star Date 3087.6
Org. Air Date: 30 Mar 1967
Published:
VHS: ST:TOS VHS 1.7
LD: ST:TOS LaserDisc Volume 13
DVD: ST:TOS DVD Volume 10
While orbiting what should be a dead planet, the U.S.S. Enterprise experiences a moment of "nonexistence." Starfleet Command fears an enemy invasion and orders Kirk to find out what caused the stellar system disturbance.

On the planet below, Kirk finds
Tomorrow is Yesterday
Star Date 3113.2
Org. Air Date: 26 Jan 1967
Published:
VHS: ST:TOS VHS 1.8
LD: ST:TOS LaserDisc Volume 09
DVD: ST:TOS DVD Volume 11
When the U.S.S. Enterprise is thrown into a time warp by a black star, it ends up orbiting Earth in the 20th century. Omaha Air Base detects a peculiar UFO and sends a fighter plane, manned by Captain John Christopher, to investigate.

The starship acciden
The Return of the Archons
Star Date 3156.2
Org. Air Date: 09 Feb 1967
Published:
VHS: ST:TOS VHS 1.8
LD: ST:TOS LaserDisc Volume 10
DVD: ST:TOS DVD Volume 11
The U.S.S. Enterprise is investigating Beta III, where the U.S.S. Archon disappeared over 100 years before.

When the landing party exhibits strange behavior, Kirk sends another party down to investigate. They find the culture on Beta III is quiescent,
A Taste of Armageddon
Star Date 3192.1
Org. Air Date: 23 Feb 1967
Published:
VHS: ST:TOS VHS 1.8
LD: ST:TOS LaserDisc Volume 11
DVD: ST:TOS DVD Volume 12
The U.S.S. Enterprise is ordered to pick up Ambassador Robert Fox, who is headed to planet Eminiar VII on a diplomatic mission. Upon arriving at the planet, the ship is warned away.

Beaming to the surface with a landing party, Kirk and Spock are met by
Space Seed
Star Date 3141.9
Org. Air Date: 16 Feb 1967
Published:
VHS: ST:TOS VHS 1.9
LD: ST:TOS LaserDisc Volume 10
DVD: ST:TOS DVD Volume 12
A piece of one of history's great puzzles falls into place when Kirk's crew comes across the S.S. Botany Bay, an old-style, pre-warp sleeper ship from Earth that contains several bodies in stasis. Amongst these bodies is Khan Noonien Singh, a genetically
This Side of Paradise
Star Date 3417.3
Org. Air Date: 02 Mar 1967
Published:
VHS: ST:TOS VHS 1.9
LD: ST:TOS LaserDisc Volume 11
DVD: ST:TOS DVD Volume 13
Expecting the colonists of Omicron Ceti III to be dead after three years of exposure to deadly Berthold rays, Kirk and Spock are surprised to find the colony alive and flourishing.

Spock beams to the surface and meets a young botanist, Leila Kalomi, th
The Devil in the Dark
Star Date 3196.1
Org. Air Date: 09 Mar 1967
Published:
VHS: ST:TOS VHS 1.9
LD: ST:TOS LaserDisc Volume 12
DVD: ST:TOS DVD Volume 13
The U.S.S. Enterprise arrives to investigate reports of an unknown monster deep in the mining tunnels of Janus VI. The being is apparently destroying machinery and killing the miners, and has the ability to burrow through solid rock. Janus VI is a source
Errand of Mercy
Star Date 3198.4
Org. Air Date: 23 Mar 1967
Published:
VHS: ST:TOS VHS 1.10
LD: ST:TOS LaserDisc Volume 12
DVD: ST:TOS DVD Volume 14
Kirk and Spock beam down to the surface of planet Organia to negotiate for the erection of a Federation base on that planet. Hostilities between the nearby Klingon Empire and Federation have reached alarming heights and it is feared that the medieval cult
The City on the Edge of Forever
Star Date 3134.0
Org. Air Date: 06 Apr 1967
Published:
VHS: ST:TOS VHS 1.10
LD: ST:TOS LaserDisc Volume 13
DVD: ST:TOS DVD Volume 14
McCoy accidentally injects himself with an overdose of cordrazine, a drug which makes him exhibit signs of paranoia and madness, while treating an ailing Sulu on the Bridge. Delirious, he beams down to a nearby planet's surface, with Kirk and a landing pa
Operation: Annihilate!
Star Date 3287.2
Org. Air Date: 13 Apr 1967
Published:
VHS: ST:TOS VHS 1.10
LD: ST:TOS LaserDisc Volume 14
DVD: ST:TOS DVD Volume 15
Arriving at the planet Deneva, home of Kirk's only brother Sam and his family, the U.S.S. Enterprise picks up a transmission from a Denevan pilot who has steered his craft into the sun to destroy some unknown menace.

Beaming down to the planet, Kirk f
2nd season
Catspaw
Star Date 3018.2
Org. Air Date: 27 Oct 1967
Published:
VHS: ST:TOS VHS 2.1
LD: ST:TOS LaserDisc Volume 17
DVD: ST:TOS DVD Volume 15
On the planet Pyris VII, two beings known as Korob and Sylvia have been sent on a mission of conquest by their home world. Using a matter transmuter, they assume human form to welcome the U.S.S. Enterprise landing party.

When one member of the initial
Metamorphosis
Org. Air Date: 10 Nov 1967
Published:
VHS: ST:TOS VHS 2.1
LD: ST:TOS LaserDisc Volume 18
DVD: ST:TOS DVD Volume 16
Assistant Federation Commissioner Nancy Hedford has become ill while trying to stop a war on Epsilon Canaris III. The shuttlecraft Galileo is assigned to take her to the U.S.S. Enterprise, where she will receive treatment for the otherwise fatal Sakuro's d
Friday's Child
Star Date 3497.2
Org. Air Date: 01 Dec 1967
Published:
VHS: ST:TOS VHS 2.1
LD: ST:TOS LaserDisc Volume 19
DVD: ST:TOS DVD Volume 16
Sent to the planet Capella IV to negotiate a mining treaty, Kirk and a party beam to the surface. They find the Capellans to be warlike and tradition-bound people. Kirk also finds that a Klingon agent, Kras, has gotten there before them and established an
Who Mourns for Adonais?
Star Date 3468.1
Org. Air Date: 22 Sep 1967
Published:
VHS: ST:TOS VHS 2.2
LD: ST:TOS LaserDisc Volume 15
DVD: ST:TOS DVD Volume 17
As the U.S.S. Enterprise nears the planet Pollux IV, a huge, green hand made of energy materializes in space, catching the U.S.S. Enterprise and holding it captive. Kirk and a landing party are transported to the planet's surface where they find a being w
Amok Time
Star Date 3372.7
Org. Air Date: 15 Sep 1967
Published:
VHS: ST:TOS VHS 2.2
LD: ST:TOS LaserDisc Volume 14
DVD: ST:TOS DVD Volume 17
When Spock begins to exhibit strange, erratic behavior, Kirk asks McCoy to conduct a medical examination. McCoy concludes that Spock is experiencing a potentially lethal internal distress.

Spock explains to them that Vulcans are married as children wit
The Doomsday Machine
Star Date 4202.9
Org. Air Date: 20 Oct 1967
Published:
VHS: ST:TOS VHS 2.2
LD: ST:TOS LaserDisc Volume 17
DVD: ST:TOS DVD Volume 18
Sent to investigate the destruction of several planetary systems, the U.S.S. Enterprise discovers a crippled starship, the U.S.S. Constellation, floating in space. Commodore Matthew Decker is the only one left on the ship. Kirk and Scotty remain on board
Wolf in the Fold
Star Date 3614.9
Org. Air Date: 22 Dec 1967
Published:
VHS: ST:TOS VHS 2.3
LD: ST:TOS LaserDisc Volume 21
DVD: ST:TOS DVD Volume 18
Kirk and McCoy decide to take Scotty, who is recovering from a head wound accidentally caused by a female Crew Member, to a nightclub on the planet Argelius II. Scotty becomes infatuated with a lovely dancer at the club and they leave together. In the me
The Changeling
Star Date 3451.9
Org. Air Date: 29 Sep 1967
Published:
VHS: ST:TOS VHS 2.3
LD: ST:TOS LaserDisc Volume 15
DVD: ST:TOS DVD Volume 19
The U.S.S. Enterprise is sent to investigate the destruction of the Malurian system and its four billion inhabitants. When it arrives at the coordinates, the starship itself is threatened by a space going, self-contained computer/probe calling itself Noma
The Apple
Star Date 3715.0
Org. Air Date: 13 Oct 1967
Published:
VHS: ST:TOS VHS 2.3
LD: ST:TOS LaserDisc Volume 16
DVD: ST:TOS DVD Volume 19
When a landing party beams down to the planet Gamma Trianguli VI, they find what appears to be an idyllic paradise. They quickly discover, however, that the planet is deadly, sporting plants that shoot thorns, rocks that explode, and incredibly accurate l
Mirror, Mirror
Org. Air Date: 06 Oct 1967
Published:
VHS: ST:TOS VHS 2.4
LD: ST:TOS LaserDisc Volume 16
DVD: ST:TOS DVD Volume 20
Caught in the beginnings of an ion storm, Kirk, McCoy and Uhura interrupt their negotiations with the Halkans for dilithium crystals, to return to the U.S.S. Enterprise. Scotty beams the landing party aboard as a burst from the storm hits the starship. Th
The Deadly Years
Star Date 3478.2
Org. Air Date: 08 Dec 1967
Published:
VHS: ST:TOS VHS 2.4
LD: ST:TOS LaserDisc Volume 20
DVD: ST:TOS DVD Volume 20
On the way to Starbase 10, the U.S.S. Enterprise stops to deliver supplies to the colonists of Gamma Hydra IV. A landing party, consisting of Kirk, Spock, McCoy, Scott, Lieutenant Galway and Chekov beam to the planet's surface. They find that accelerated
I, Mudd
Star Date 4513.3
Org. Air Date: 03 Nov 1967
Published:
VHS: ST:TOS VHS 2.4
LD: ST:TOS LaserDisc Volume 18
DVD: ST:TOS DVD Volume 21
Norman, an android pretending to be a member of the U.S.S. Enterprise crew, takes control of the starship and her crew, taking them to an unnamed planet where Kirk discovers an old nemesis... Harry Mudd.

Fleeing from his most recent criminal exploit,
The Trouble With Tribbles
Star Date 4523.3
Org. Air Date: 29 Dec 1967
Published:
VHS: ST:TOS VHS 2.5
LD: ST:TOS LaserDisc Volume 21
DVD: ST:TOS DVD Volume 21
When the U.S.S. Enterprise receives a top priority order to protect a shipment of quadrotriticale grain on Deep Space Station K-7, Kirk is irritated to be guarding a shipment of "wheat." But the shipment is meant for famine-struck Sherman's Planet, and Kl
Bread and Circuses
Star Date 4040.7
Org. Air Date: 15 Mar 1968
Published:
VHS: ST:TOS VHS 2.5
LD: ST:TOS LaserDisc Volume 27
DVD: ST:TOS DVD Volume 22
The U.S.S. Enterprise finds the wreckage of the S.S. Beagle, with no survivors, orbiting near the Planet 892-IV. When Kirk, Spock, and McCoy beam to the planet's surface, they find a dishelveled group of "sun worshipers" trying to escape being caught by t
Journey to Babel
Star Date 3842.3
Org. Air Date: 17 Nov 1967
Published:
VHS: ST:TOS VHS 2.5
LD: ST:TOS LaserDisc Volume 19
DVD: ST:TOS DVD Volume 22
The U.S.S. Enterprise is appointed to transport ambassadors from many worlds to the Babel Conferences. Among those aboard are Sarek of Vulcan and his human wife, Amanda Grayson - Spock's parents.

Keeping peace aboard his ship is complicated
A Private Little War
Star Date 4211.4
Org. Air Date: 02 Feb 1968
Published:
VHS: ST:TOS VHS 2.6
LD: ST:TOS LaserDisc Volume 23
DVD: ST:TOS DVD Volume 23
Captain Kirk leads a survey mission to a peaceful, primitive planet which he visited 13 years before as a lieutenant. He is dismayed to see a group of villagers armed with flintlocks, weapons they shouldn't have at their current stage of development. The
The Gamesters of Triskelion
Star Date 3211.7
Org. Air Date: 05 Jan 1968
Published:
VHS: ST:TOS VHS 2.6
LD: ST:TOS LaserDisc Volume 22
DVD: ST:TOS DVD Volume 23
During a routine transport to a planet, Captain Kirk, Lieutenant Uhura and Ensign Pavel Andreievich Chekovtercepted and abducted by a powerful and distant transporter beam. Arriving, literally, flat on their backs on a planet called Triskelion in the M-24 Alpha star
Obsession
Star Date 3619.2
Org. Air Date: 15 Dec 1967
Published:
VHS: ST:TOS VHS 2.6
LD: ST:TOS LaserDisc Volume 20
DVD: ST:TOS DVD Volume 24
Eleven years ago, the U.S.S. Farragut encountered a deadly cloud creature with vampire-like tendencies. James T. Kirk was on board the Farragut at that time as they entered the region of Tycho IV. The creature killed the ship's commander, Captain Garrovick,
The Immunity Syndrome
Star Date 4307.1
Org. Air Date: 19 Jan 1968
Published:
VHS: ST:TOS VHS 2.7
LD: ST:TOS LaserDisc Volume 23
DVD: ST:TOS DVD Volume 24
The U.S.S. Enterprise is en route to Starbase 6 for shore leave when Uhura receives a jumbled message from which all she can make out is a sector coordinate and the name U.S.S. Intrepid, a starship manned entirely by Vulcans. Suddenly, Spock shudders with
A Piece of the Action
Star Date 4598.0
Org. Air Date: 12 Jan 1968
Published:
VHS: ST:TOS VHS 2.7
LD: ST:TOS LaserDisc Volume 22
DVD: ST:TOS DVD Volume 25
The planet Sigma Iotia II's last visit by the Federation was by the U.S.S. Horizon... a hundred years before. Realizing the lapse in monitoring the planet, the Federation sends the U.S.S. Enterprise to observe the progress of Iotia's population.

Beamin
By Any Other Name
Star Date 4657.5
Org. Air Date: 23 Feb 1968
Published:
VHS: ST:TOS VHS 2.7
LD: ST:TOS LaserDisc Volume 25
DVD: ST:TOS DVD Volume 25
When the U.S.S. Enterprise answers a distress call from a small planet, the landing party is captured by a group of agents from the Kelvan empire, located in the distant Andromeda galaxy. The Kelvans' purpose is to find planets suitable for colonization.
Return to Tomorrow
Star Date 4768.3
Org. Air Date: 09 Feb 1968
Published:
VHS: ST:TOS VHS 2.8
LD: ST:TOS LaserDisc Volume 24
DVD: ST:TOS DVD Volume 26
The U.S.S. Enterprise tracks a mysterious SOS to an ancient planet presumed long dead. The crew hears a voice from a telepathic being named Sargon, who asks Kirk to beam down to the surface. When Kirk, Spock and McCoy arrive in the transporter room, they
Patterns of Force
Star Date 2534.0
Org. Air Date: 16 Feb 1968
Published:
VHS: ST:TOS VHS 2.8
LD: ST:TOS LaserDisc Volume 24
DVD: ST:TOS DVD Volume 26
The U.S.S. Enterprise is sent to planet Ekos to investigate the disappearance of an old Academy professor of Kirk's - historian John Gill. The Enterprise is attacked by an armed probe with a thermonuclear warhead, technology that is too advanced to be
The Ultimate Computer
Star Date 4729.4
Org. Air Date: 08 Mar 1968
Published:
VHS: ST:TOS VHS 2.8
LD: ST:TOS LaserDisc Volume 27
DVD: ST:TOS DVD Volume 27
The U.S.S. Enterprise is chosen to be the test ship for the new M-5 multitronic computer system, a computer meant to be able to run a starship without human intervention. Also aboard for the test is Dr. Richard Daystrom, the inventor of the M-5 and an obs
The Omega Glory
Org. Air Date: 01 Mar 1968
Published:
VHS: ST:TOS VHS 2.9
LD: ST:TOS LaserDisc Volume 25
DVD: ST:TOS DVD Volume 27
The U.S.S. Enterprise finds a crewless starship, the U.S.S. Exeter, in orbit around the planet Omega IV. The boarding party from the U.S.S. Enterprise contracts a virus that may have killed the Exeter's crew, but the biosphere on Omega IV is found to cont
Assignment: Earth
Org. Air Date: 29 Mar 1968
Published:
VHS: ST:TOS VHS 2.9
LD: ST:TOS LaserDisc Volume 28
DVD: ST:TOS DVD Volume 28
Sent back in time to find out how Earth managed to survive without destroying itself, the U.S.S. Enterprise inadvertently beams aboard a space traveler, Gary Seven, along with his black cat, Isis. Seven claims to be a 20th-century human raised and train
3rd season
Spectre of the Gun
Star Date 4385.3
Org. Air Date: 25 Oct 1968
Published:
VHS: ST:TOS VHS 3.1
LD: ST:TOS LaserDisc Volume 31
DVD: ST:TOS DVD Volume 28
Kirk ignores an alien buoy that warns the U.S.S. Enterprise that it is trespassing into Melkotian space and continues forward when the Melkots transport Kirk, Spock, McCoy, Scotty, and Chekov to a recreation of Earth's wild west. Here their instruments wi
Elaan of Troyius
Star Date 4372.5
Org. Air Date: 20 Dec 1968
Published:
VHS: ST:TOS VHS 3.1
LD: ST:TOS LaserDisc Volume 34
DVD: ST:TOS DVD Volume 29
Two United Federation of Planets members, Elas and Troyius, suffered war for centuries. With Klingon Empire expansion approaching the planets' system, Tellun, the Federation sends the U.S.S. Enterprise to lend assistance in a peace negotiation. The peace
The Paradise Syndrome
Star Date 4842.6
Org. Air Date: 04 Oct 1968
Published:
VHS: ST:TOS VHS 3.1
LD: ST:TOS LaserDisc Volume 29
DVD: ST:TOS DVD Volume 29
Investigating a planet in danger of collision with an asteroid, Captain Kirk, Mr. Spock, and Dr. McCoy discover both Native American inhabitants and a strange alien obelisk. While examining the obelisk, Kirk is accidentally trapped inside. Trying to escap
The Enterprise Incident
Star Date 5027.3
Org. Air Date: 27 Sep 1968
Published:
VHS: ST:TOS VHS 3.2
LD: ST:TOS LaserDisc Volume 29
DVD: ST:TOS DVD Volume 30
Seeming tense and erratic, Captain Kirk takes the U.S.S. Enterprise into Romulan space and the ship is immediately surrounded by Romulan warships. Kirk and Spock beam aboard the Romulan flag-ship and confront the Romulan Commander, a woman. Kirk explains that
And the Children Shall Lead
Star Date 5029.5
Org. Air Date: 11 Oct 1968
Published:
VHS: ST:TOS VHS 3.2
LD: ST:TOS LaserDisc Volume 30
DVD: ST:TOS DVD Volume 30
When the U.S.S. Enterprise finds that all the adults in the Starnes Expedition to Triacus have killed themselves, they beam to the planet's surface to investigate. The children, however, are alive and well and strangely oblivious to their parents' fates.
Spock's Brain
Star Date 5431.4
Org. Air Date: 20 Sep 1968
Published:
VHS: ST:TOS VHS 3.2
LD: ST:TOS LaserDisc Volume 28
DVD: ST:TOS DVD Volume 31
The U.S.S. Enterprise is on a routine mission in deep space when a beautiful young woman beams onto the bridge. Without a word, she touches a band on her wrist and everyone is rendered unconscious. She moves around the bridge until finally she comes to Sp
Is There In Truth No Beauty?
Star Date 5630.7
Org. Air Date: 18 Oct 1968
Published:
VHS: ST:TOS VHS 3.3
LD: ST:TOS LaserDisc Volume 30
DVD: ST:TOS DVD Volume 31
In an attempt to adapt Medusan technology to Federation use, and vice versa, the U.S.S. Enterprise picks up Medusan ambassador Kollos, instrument specialist Lawrence Marvick and telepath Miranda Jones. The Medusans have a great beauty of character, but the
The Empath
Star Date 5121.0
Org. Air Date: 06 Dec 1968
Published:
VHS: ST:TOS VHS 3.3
LD: ST:TOS LaserDisc Volume 34
DVD: ST:TOS DVD Volume 32
The U.S.S. Enterprise goes to pick up research personnel on the second planet of the star Minara. While Kirk, Spock and McCoy are on the surface, a radiation storm endangers the starship and Scotty takes the Enterprise out of orbit, sure that the planet's
The Tholian Web
Star Date 5693.2
Org. Air Date: 15 Nov 1968
Published:
VHS: ST:TOS VHS 3.3
LD: ST:TOS LaserDisc Volume 32
DVD: ST:TOS DVD Volume 32
The U.S.S. Enterprise arrives in an uncharted area of space to answer a distress call from the U.S.S. Defiant. The starship is visible on their viewscreen, but sensors on board the U.S.S. Enterprise say it's not there.

Kirk, Spock, McCoy and Chekov bea
For the World Is Hollow and I Have Touched the Sky
Star Date 5476.3
Org. Air Date: 08 Nov 1968
Published:
VHS: ST:TOS VHS 3.4
LD: ST:TOS LaserDisc Volume 32
DVD: ST:TOS DVD Volume 33
At the same time McCoy discovers that he has a year to live, the U.S.S. Enterprise encounters the asteroid Yonada which is determined to be artificially propelled. Its center is occupied by humanoids, whose ancestors built the asteroid "vessel" in an effo
Day of the Dove
Org. Air Date: 01 Nov 1968
Published:
VHS: ST:TOS VHS 3.4
LD: ST:TOS LaserDisc Volume 31
DVD: ST:TOS DVD Volume 33
A U.S.S. Enterprise landing party beams to a human-colonized planet in answer to a distress call. A Klingon ship, apparently damaged, is detected and a group of Klingons accuse Kirk of having damaged their ship. Kang, their leader, claims the U.S.S. Enter
Plato's Stepchildren
Star Date 5784.0
Org. Air Date: 22 Nov 1968
Published:
VHS: ST:TOS VHS 3.4
LD: ST:TOS LaserDisc Volume 33
DVD: ST:TOS DVD Volume 34
When the U.S.S. Enterprise receives a distress call from the planet Platonius, Kirk, Spock and McCoy beam down to the planet's surface. There they find the planet's leader, Parmen, with a badly infected leg. The Platonians, while powerful psycho kinetics,
Wink of an Eye
Star Date 5710.5
Org. Air Date: 29 Nov 1968
Published:
VHS: ST:TOS VHS 3.5
LD: ST:TOS LaserDisc Volume 33
DVD: ST:TOS DVD Volume 34
The U.S.S. Enterprise responds to a distress call from the planet Scalos; the call shows several Scalosians asking for assistance. Arriving at Scalos, however, the crew find only an empty city, with no life forms registering on tricorder scans. Compton, a
That Which Survives
Org. Air Date: 24 Jan 1969
Published:
VHS: ST:TOS VHS 3.5
LD: ST:TOS LaserDisc Volume 36
DVD: ST:TOS DVD Volume 35
As a landing party prepares to beam down to a previously unexplored Class-M planet, a beautiful woman, Losira, appears. She touches an ensign and kills him. Already dematerializing in the transporter beam, Kirk and the rest of his party are helpless to st
Let That Be Your Last Battlefield
Star Date 5730.2
Org. Air Date: 10 Jan 1969
Published:
VHS: ST:TOS VHS 3.5
LD: ST:TOS LaserDisc Volume 35
DVD: ST:TOS DVD Volume 35
The U.S.S. Enterprise intercepts a stolen Federation shuttlecraft which contains a humanoid named Lokai. Taken aboard the ship, Lokai tells the crew he is from the planet Cheron, and asks for asylum on the U.S.S. Enterprise. His most distinctive feature i
Whom Gods Destroy
Star Date 5718.3
Org. Air Date: 03 Jan 1969
Published:
VHS: ST:TOS VHS 3.6
LD: ST:TOS LaserDisc Volume 35
DVD: ST:TOS DVD Volume 36
Elba II, a planet with a poisonous atmosphere, also has a facility beneath its surface for the incurably, criminally insane. The U.S.S. Enterprise is bringing a new medicine with which they hope to eliminate mental illness forever.

When Kirk and Spock
The Mark of Gideon
Star Date 5423.4
Org. Air Date: 17 Jan 1969
Published:
VHS: ST:TOS VHS 3.6
LD: ST:TOS LaserDisc Volume 36
DVD: ST:TOS DVD Volume 36
The planet Gideon appears to be a haven - the inhabitants are healthy and no one seems to ever die in the totally germ-free environment.

The United Federation of Planets sends the U.S.S. Enterprise to Gideon, in the hope that the Gideons will accede an
The Lights of Zetar
Star Date 5725.3
Org. Air Date: 31 Jan 1969
Published:
VHS: ST:TOS VHS 3.6
LD: ST:TOS LaserDisc Volume 37
DVD: ST:TOS DVD Volume 37
The U.S.S. Enterprise's mission is to take Lieuenant Mira Romaine to Memory Alpha, the central library for the United Federation of Planets. There she will supervise the transfer of new equipment to the facility. Montgomery "Scotty" Scott is immediately attracted to th
The Cloud Minders
Star Date 5818.4
Org. Air Date: 28 Feb 1969
Published:
VHS: ST:TOS VHS 3.7
LD: ST:TOS LaserDisc Volume 38
DVD: ST:TOS DVD Volume 37
The U.S.S. Enterprise comes to the planet Ardana to acquire zienite, a rare mineral needed to stop a planet-wide plague on Merak II. The zienite is not available, however, because the miner class Troglytes are rebelling against the rulers of Ardana, who l
The Way to Eden
Star Date 5832.3
Org. Air Date: 21 Feb 1969
Published:
VHS: ST:TOS VHS 3.7
LD: ST:TOS LaserDisc Volume 38
DVD: ST:TOS DVD Volume 38
Chasing the stolen vessel Aurora, the U.S.S. Enterprise rescues the thieves just before the Aurora is destroyed. The group is led by Dr. Sevrin in a search for a mythological planet named Eden, a planet reputed to be a paradise.

Since one of Sevrin's g
Requiem for Methuselah
Star Date 5843.7
Org. Air Date: 14 Feb 1969
Published:
VHS: ST:TOS VHS 3.7
LD: ST:TOS LaserDisc Volume 37
DVD: ST:TOS DVD Volume 38
Rigellian fever, an extremely deadly plague, strikes the U.S.S. Enterprise crew. Kirk, Spock and McCoy beam down to a supposedly uninhabited planet, Holberg 917-G, in search of the only known antidote, ryetalyn. To their surprise, they encounter Flint and
The Savage Curtain
Star Date 5906.4
Org. Air Date: 07 Mar 1969
Published:
VHS: ST:TOS VHS 3.8
LD: ST:TOS LaserDisc Volume 39
DVD: ST:TOS DVD Volume 39
The U.S.S. Enterprise is scanned by a powerful energy source coming from the planet Excalbia. The starship had been sent to survey the planet, but it was thought to consist of nothing but a lavalike surface without inhabitants.

The image of Roles:1777
All Our Yesterdays
Star Date 5943.7
Org. Air Date: 14 Mar 1969
Published:
VHS: ST:TOS VHS 3.8
LD: ST:TOS LaserDisc Volume 39
DVD: ST:TOS DVD Volume 39
The crew of the U.S.S. Enterprise investigate the planet Sarpeidon whose sun is soon to go nova. Upon beaming to the surface, Kirk, Spock, and McCoy discover the inhabitants gone and a library containing the planet's accu
Turnabout Intruder
Star Date 5928.5
Org. Air Date: 03 Jul 1969
Published:
VHS: ST:TOS VHS 3.8
LD: ST:TOS LaserDisc Volume 40
DVD: ST:TOS DVD Volume 40
Dr. Janice Lester, who was once involved with Captain Kirk, harbors a deep hatred of the captain, because she, herself, has never been able to captain a starship. On their way to Beta Aurigae, the U.S.S. Enterprise receives a call for help from Camus II.