THE MAN TRAP
EPISODE NUMBER - 102
AIR DATE - 09.08.66
GATEWORLD RATING - * * 1/2
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.

CHARLIE X
EPISODE NUMBER - 103
AIR DATE - 09.15.66
GATEWORLD RATING - * *
The Enterprise brings aboard a young, undisciplined man with unimaginable powers -- which he uses against the crew to get what he wants.

WHERE NO MAN HAS GONE BEFORE
EPISODE NUMBER - 104
AIR DATE - 09.22.66
GATEWORLD RATING - * * *
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.

THE NAKED TIME
EPISODE NUMBER - 105
AIR DATE - 09.29.66
GATEWORLD RATING - unrated
The Enterprise crew is infected by an alien virus, which accentuates their wildest emotions and desires.

THE ENEMY WITHIN
EPISODE NUMBER - 106
AIR DATE - 10.06.66
GATEWORLD RATING - * * * 1/2
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.

MUDD'S WOMEN
EPISODE NUMBER - 107
AIR DATE - 10.13.66
GATEWORLD RATING - unrated
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.

WHAT ARE LITTLE GIRLS MADE OF?
EPISODE NUMBER - 108
AIR DATE - 10.20.66
GATEWORLD RATING - unrated
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.

MIRI
EPISODE NUMBER - 109
AIR DATE - 10.27.66
GATEWORLD RATING - unrated
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.

DAGGER OF THE MIND
EPISODE NUMBER - 110
AIR DATE - 11.03.66
GATEWORLD RATING - unrated
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.

THE CORBOMITE MANEUVER
EPISODE NUMBER - 111
AIR DATE - 11.10.66
GATEWORLD RATING - unrated
When the Enterprise is caught in a deadly conflict with an unknown alien vessel, Kirk must use all his wits to escape.

THE MENAGERIE,
PART 1
EPISODE NUMBER - 112
AIR DATE - 11.17.66
GATEWORLD RATING - * * *
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.

THE MENAGERIE,
PART 2
EPISODE NUMBER - 113
AIR DATE - 11.24.66
GATEWORLD RATING - * * *
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.

THE CONSCIENCE OF THE KING
EPISODE NUMBER - 114
AIR DATE - 12.08.66
GATEWORLD RATING - unrated
Captain Kirk grows suspicious that a respected actor from a visiting theatrical troupe was once a notorious mass-murderer.

BALANCE OF TERROR
EPISODE NUMBER - 115
AIR DATE - 12.15.66
GATEWORLD RATING - * * * *
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.

SHORE LEAVE
EPISODE NUMBER - 116
AIR DATE - 12.29.66
GATEWORLD RATING - unrated
The crew find an idyllic world where their wildest dreams -- and darkest nightmares -- come true.

THE GALILEO SEVEN
EPISODE NUMBER - 117
AIR DATE - 01.05.67
GATEWORLD RATING - unrated
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.

THE SQUIRE OF GOTHOS
EPISODE NUMBER - 118
AIR DATE - 01.12.67
GATEWORLD RATING - unrated
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.

ARENA
EPISODE NUMBER - 119
AIR DATE - 01.19.67
GATEWORLD RATING - unrated
Powerful aliens transport Kirk to a barren planet, forcing him to fight to the death with an unstoppable Gorn enemy.

TOMORROW IS YESTERDAY
EPISODE NUMBER - 120
AIR DATE - 01.26.67
GATEWORLD RATING - unrated
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.

COURT MARTIAL
EPISODE NUMBER - 121
AIR DATE - 02.02.67
GATEWORLD RATING - unrated
Captain Kirk is accused of violating procedure and blamed for the death of an officer and friend, leading to his court martial.

THE RETURN OF THE ARCHONS
EPISODE NUMBER - 122
AIR DATE - 02.09.67
GATEWORLD RATING - unrated
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.

SPACE SEED
EPISODE NUMBER - 123
AIR DATE - 02.16.67
GATEWORLD RATING - * * * *
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.

A TASTE OF ARMAGEDDON
EPISODE NUMBER - 124
AIR DATE - 02.23.67
GATEWORLD RATING - * * 1/2
Kirk acts to stop the slaughter of thousands of people when the crew finds a civilization fighting a virtual war with computers.

THIS SIDE OF PARADISE
EPISODE NUMBER - 125
AIR DATE - 03.02.67
GATEWORLD RATING - * * *
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.

THE DEVIL IN THE DARK
EPISODE NUMBER - 126
AIR DATE - 03.09.67
GATEWORLD RATING - unrated
An alien creature kills workers in a Federation mining colony, and the Enterprise crew must discover its shocking motives.

ERRAND OF MERCY
EPISODE NUMBER - 127
AIR DATE - 03.23.67
GATEWORLD RATING - * * * 1/2
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.

THE ALTERNATIVE FACTOR
EPISODE NUMBER - 128
AIR DATE - 03.30.67
GATEWORLD RATING - unrated
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.

THE CITY ON THE EDGE OF FOREVER
EPISODE NUMBER - 129
AIR DATE - 04.06.67
GATEWORLD RATING - * * * *
Dr. McCoy inadvertantly 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.

OPERATION: ANNIHILATE!
EPISODE NUMBER - 130
AIR DATE - 04.13.67
GATEWORLD RATING - unrated
An alien organism attacks Spock, and the only way to kill the parasite may be deady to the Vulcan officer.