Show Stardate Episode
3012.4 The Menagerie, Part I
The Enterprise and her crew are diverted by a signal from the former captain of the Enterprise on Starbase 6, and proceed to the call. (original air date: November 17, 1966)
3013.1 The Menagerie, Part II
(original air date: November 24, 1966)
3018.2 Catspaw
On the planet Pyris VII, two beings known as Korob and Sylvia have been sent on a mission of conquest by their home world. (original air date: October 27, 1967)
3025.3 Shore Leave
A Enterprise landing party beams down to an uncharted planet which seems like a perfect candidate for shore leave with it's Earth-type characteristics. (original air date: December 29, 1966)
3045.6 Arena
The 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. (original air date: January 19, 1967)
3087.6 The Alternative Factor
While orbiting what should be a dead planet, the Enterprise experiences a moment of “nonexistence.” Starfleet Command fears an enemy invasion and orders Kirk to find out what caused the stellar system disturbance. (original air date: March 30, 1967)
3113.2 Tomorrow is Yesterday
When the Enterprise is thrown into a time warp by a black star, it ends up orbiting Earth in the 20th century. (original air date: January 26, 1967)
3134.0 The City on the Edge of Forever
Doctor McCoy leaps through a living time machine called “The Guardian of Forever.” At that moment, the U.S.S. Enterprise ceases to exist and the landing party is stranded. (original air date: April 6, 1967)
3141.9 Space Seed
A piece of one of history's great puzzles falls into place when Kirk's crew comes across the S.S. Botany Bay. The ship contains Khan Noonian Singh, a genetically engineered strongman and one of the great leaders of Earth's Eugenics War. (See Khan again in the movie Star Trek II: The Wrath of Khan.) (original air date: February 16, 1967)
3156.2 The Return of the Archons
The Enterprise is investigating Beta III, where the U.S.S. Archon disappeared over 100 years before. (original air date: February 9, 1967)
3183.3 The Practical Joker
While studying an asteroid, the Enterprise is attacked by three Romulan vessels that claim the Enterprise has trespassed into Romulan space. (original air date: September 21, 1974)
3192.1 A Taste of Armageddon
The 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. (original air date: February 23, 1967)
3196.1 The Devil in the Dark
The 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. (original air date: March 9, 1967)
3198.4 Errand of Mercy
Kirk and Spock beam down to the surface of planet Organia to negotiate for the erection of a Federation base. Hostilities between the Klingon Empire and Federation have reached alarming heights and it is feared that the medieval culture of the Organians will not be able to withstand a Klingon attack. (original air date: March 23, 1967)
3211.7 The Gamesters of Triskelion
During a routine transport to a planet, Captain Kirk, Lieutenant Uhura and Ensign Chekov are intercepted and abducted by a powerful and distant transporter beam. (original air date: January 5, 1968)
3219.4 Metamorphosis
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 Enterprise, where she will receive treatment for the otherwise fatal Sakuro's disease. (See Zefram Cochrane again in the movie Star Trek VIII: First Contact.) (original air date: November 10, 1967)
3287.2 Operation-Annihilate!
Arriving at the planet Deneva the Enterprise picks up a transmission from a Denevan pilot who has steered his craft into the sun to destroy some unknown menace. (original air date: April 13, 1967)
3372.7 Amok Time
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. (original air date: September 15, 1967)
3417.3 This Side of Paradise
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. (original air date: March 2, 1967)
3451.9 The Changeling
The 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 Nomad. (original air date: September 29, 1967)
3468.1 Who Mourns for Adonais?
As the Enterprise nears the planet Pollux IV, a huge, green hand made of energy materializes in space, catching the Enterprise and holding it captive. (original air date: September 22, 1967)
3478.2 The Deadly Years
The Enterprise stops to deliver supplies to the colonists of Gamma Hydra IV. They find that accelerated aging has taken place, killing most of the colonists. (original air date: December 8, 1967)
3497.2 Friday's Child
Sent to the planet Capella IV to negotiate a mining treaty, Kirk and a party beam to the surface and find that a Klingon agent, Kras, has gotten there before them and established an agreement with some of the planet's rebels. (original air date: December 1, 1967)
358?.? Mirror, Mirror
Scotty beams the landing party aboard as a burst from the storm hits the starship. The transporter malfunctions, sending Kirk, McCoy, Scotty and Uhura into an alternate universe. (original air date: October 6, 1967)
3614.9 Wolf in the Fold
Scotty is accused of killing a young dancer from a nightclub on the planet Argelian. (original air date: December 22, 1967)
3619.2 Obsession
Eleven years ago, the U.S.S. Farragut encountered a deadly cloud creature with vampire-like tendencies. On his way to deliver necessary medical supplies, Kirk encounters what he believes is the same blood-sucking entity. (original air date: December 15, 1967)
3715.0 The Apple
When a landing party beams down to the planet Gamma Trianguli VI, they find what appears to be an idyllic paradise. (original air date: October 13, 1967)
3842.3 Journey to Babel
The Enterprise is appointed to transport ambassadors from many worlds to the Babel Conferences. Among those aboard are Ambassador Sarek of Vulcan and his human wife, Amanda... Spock's parents. (original air date: November 17, 1967)
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