Show Stardate Episode Title
1254.4 The Magicks of Megas-Tu
While investigating the theory of creation, the Enterprise is caught inside an energy/matter tornado and pulled to the center of the galaxy. (released October 27, 1973)
none given The Cage
Ten years before James T. Kirk takes command of the U.S.S. Enterprise, Captain Christopher Pike and his starship crew receive a distress signal from the planet Talos IV and beam down to investigate. (unaired pilot)
1312.4 Where No Man Has Gone Before
The Enterprise is sent to investigate the destruction of the S.S. Valiant. (released September 22, 1966)
1329.1 Mudd's Women
The Enterprise pursues an unknown ship into an asteroid belt to save its crew before it's destroyed. (Mudd appears again on stardate 4513.3) (released October 13, 1966)
1512.2 The Corbomite Maneuver
While exploring an uncharted region of space, the Enterprise comes upon an alien space buoy which warns the ship away and blocks the starship's path. Kirk's orders the phasers to destroy the buoy but immediately an alien's ship appears and traps the starship. (released November 10, 1966)
1513.1 The Man Trap
The Enterprise arrives at planet M-113 to deliver supplies to Dr. Robert Crater and his wife, Nancy, with whom McCoy was once romantically involved. (first episode aired) (released September 8, 1966)
1533.6 Charlie X
Charles Evans, the lone survivor of a crashed colonizing expedition to the planet Thasus, comes aboard the Enterprise from the S.S. Antares. (released September 15, 1966)
1672.1 The Enemy Within
While orbiting the planet Alpha 177, the Enterprise experiences a transporter malfunction that results in two Captain Kirk's being beamed aboard. (released October 6, 1966)
1704.2 The Naked Time
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. The Next Generation crew find themselves in a similar situation in the episode The Naked Now. (released September 29, 1966)
1709.2 Balance of Terror
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. (released December 15, 1966)