Season One Episode Guide
Episode #: 100
Air Date: 10.04.88
Christopher Pike and the U.S.S. Enterprise investigate a crash site on Talos IV, where the captain is imprisoned by powerful telepathic aliens and studied.
Episode #: 101
Air Date: 09.08.66
Captain Kirk and the Enterprise deliver supplies to planet M-113, where McCoy is reunited with an old flame. A salt-sucking shapeshifter begins attacking the crew.
Air Date: 09.15.66
The Enterprise brings aboard a young, undisciplined man with unimaginable powers -- which he uses against the crew to get what he wants.
Episode #: 103
Air Date: 09.22.66
One of the Enterprise's own crew threatens the ship when an alien energy force gives him god-like powers. Kirk must sacrifice his friend for the good of the galaxy -- if he can.
Episode #: 104
Air Date: 09.29.66
The Enterprise crew is infected by an alien virus, which accentuates their wildest emotions and desires.
Episode #: 105
Air Date: 10.06.66
A transporter accident separates Kirk into two people -- a kind and gentle Kirk, and a strong and unscrupulous Kirk. The crew must reunite the two and restore their captain.
Episode #: 106
Air Date: 10.13.66
The Enterprise welcomes a freighter captain and three beautiful women, who turn the heads of every man on board -- but who are using a powerful drug to maintain their appearances.
Episode #: 107
Air Date: 10.20.66
Nurse Chapel is reunited with her long-lost fiancée, who has created a colony of android clones and plans to take over the Enterprise -- and the Federation.
Episode #: 108
Air Date: 10.27.66
The Enterprise finds a world ravaged by disease, where the only survivors are a group of children -- who themselves suffer and die upon reaching adulthood.
Episode #: 109
Air Date: 11.03.66
Kirk and the Enterprise crew investigate a penal colony, where the facility's reputable director gives the captain a first-hand look at his neural neutralizer device.
Episode #: 110
Air Date: 11.10.66
When the Enterprise is caught in a deadly conflict with an unknown alien vessel, Kirk must use all his wits to escape.
Episode #: 111
Air Date: 11.17.66
Spock kidnaps his former captain and commandeers the Enterprise, prompting a court martial where he presents the story of Christopher Pike's fateful mission to the planet Talos IV.
Episode #: 112
Air Date: 11.24.66
The fate of Spock and Christopher Pike hang in the balance as Kirk and Commodore Mendez watch the story of Pike's alien incarceration years before.
Episode #: 113
Air Date: 12.08.66
Captain Kirk grows suspicious that a respected actor from a visiting theatrical troupe was once a notorious mass-murderer.
Episode #: 114
Air Date: 12.15.66
Kirk and crew battle an invisible enemy -- a Romulan warbird that has crossed the Neutral Zone and attacked Federation outposts. Spock's loyalties are questioned when the first Romulan visual transmission is intercepted.
Episode #: 115
Air Date: 12.29.66
The crew find an idyllic world where their wildest dreams -- and darkest nightmares -- come true.
Episode #: 116
Air Date: 01.05.67
Spock, McCoy, Scott and four crewmen crash land on a hostile alien planet, and Kirk must choose between looking for them or delivering desperately-needed medical supplies to a plague-stricken world.
Episode #: 117
Air Date: 01.12.67
The Enterprise crew is captured by an impetuous and eccentric being with tremendous powers, and Kirk must challenge him to a duel if they hope to escape.
Episode #: 118
Air Date: 01.19.67
Powerful aliens transport Kirk to a barren planet, forcing him to fight to the death with an unstoppable Gorn enemy.
Episode #: 119
Air Date: 01.26.67
The Enterprise is thrown back into the past, where Kirk and his crew must prevent a military sighting of the ship from changing Earth's history.
Episode #: 120
Air Date: 02.02.67
Captain Kirk is accused of violating procedure and blamed for the death of an officer and friend, leading to his court martial.
Episode #: 121
Air Date: 02.09.67
The Enterprise investigates a world where a Federation starship disappeared more than a century before, and find a civilization controlled by a group of "law givers" and the enigmatic Landru.
Episode #: 122
Air Date: 02.16.67
The crew finds a sleeper ship from the 20th century, and revive a genetically-altered military leader who attempts to take over the ship: the cunning and powerful Khan.
Episode #: 123
Air Date: 02.23.67
Kirk acts to stop the slaughter of thousands of people when the crew finds a civilization fighting a virtual war with computers.
Episode #: 124
Air Date: 03.02.67
The crew attempt to evacuate a human colony, but spores from a local plant alter their minds, leading to an all-out mutiny. Spock explores his emotional side.
Episode #: 125
Air Date: 03.09.67
An alien creature kills workers in a Federation mining colony, and the Enterprise crew must discover its shocking motives.
Episode #: 126
Air Date: 03.23.67
Kirk and Spock come face-to-face with the Klingon Empire during a mission to establish a Federation presence on the planet Organia, and find that the local people have no desire to defend themselves from the Klingons.
Episode #: 127
Air Date: 03.30.67
The Enterprise finds the pilot of a space-time ship struggling with an evil version of himself from an alternate dimension -- and must stop the destruction of the entire universe.
Episode #: 128
Air Date: 04.06.67
Dr. McCoy inadvertently changes history, wiping the Federation from existence. Kirk and Spock must follow him through a portal to Earth's 20th century to set things right.