• : 1966
  • : 79
  • : 1326
  • NBC
  • 20
  • Action Adventure Drama Science-fiction

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2
2x1
Amok Time
Episode overview
15, 1967
Spock must go to Vulcan in order to perform the Vulcan mating ritual.
2x2
Who Mourns for Adonais?
Episode overview
22, 1967
The Enterprise encounters an alien who claims to be the Greek god Apollo.
2x3
The Changeling
Episode overview
29, 1967
The Enterprise encounters an ancient Earth probe bent on the sterilization of all life.
2x4
Mirror, Mirror
Episode overview
06, 1967
Kirk and three of his officers are accidentally transported into a parallel "mirror" universe where violence, greed, and evil are commonplace.
2x5
The Apple
Episode overview
13, 1967
Kirk attempts to assist a primitive people that are ruled over by a computer named Vaal.
2x6
The Doomsday Machine
Episode overview
20, 1967
The Enterprise must stop an ancient doomsday weapon that is capable of destroying entire worlds... and has already totalled one Constellation-class cruiser.
2x7
Catspaw
Episode overview
27, 1967
When a landing party disappears and one man is beamed up dead, Kirk and Spock investigate and meet a pair of aliens who seem capable of performing magic.
2x8
I, Mudd
Episode overview
03, 1967
The Enterprise is taken over by a group of androids who are working for Kirk's old nemesis, Harry Mudd.
2x9
Metamorphosis
Episode overview
10, 1967
When their shuttle is diverted to a planetoid, Kirk meets one of the pioneers of space flight, Zefram Cochrane.
2x10
Journey to Babel
Episode overview
17, 1967
Spock meets his estranged father when the Enterprise escorts a group of ambassadors to a conference on the planet Babel.
2x11
Friday's Child
Episode overview
01, 1967
Kirk, Spock, and McCoy land on a primitive planet to negotiate a mining treaty, but soon find themselves involved with intrigue and must flee with a pregnant woman into the surrounding mountains.
2x12
The Deadly Years
Episode overview
08, 1967
A landing party, including the command staff, are infected with a disease that causes rapid aging and senility.
2x13
Obsession
Episode overview
15, 1967
The Enterprise must deal with a creature from Kirk's past that feeds on human blood.
2x14
Wolf in the Fold
Episode overview
22, 1967
A serial killer stalks a planet... and Scotty is the prime suspect.
2x15
The Trouble with Tribbles
Episode overview
29, 1967
Kirk must defuse a Klingon scheme to destroy a grain shipment... and cope with a seemingly benign creature known as a tribble, which reproduces at amazing speed.
2x16
The Gamesters of Triskelion
Episode overview
05, 1968
Kirk, Chekov, and Uhura are kidnapped and forced to participate in a series of gladiatorial games.
2x17
A Piece of the Action
Episode overview
12, 1968
The Enterprise travels to a planet suffering from cultural contamination from an earlier expedition - the inhabitants mimic the culture of 1930's gangland Chicago.
2x18
The Immunity Syndrome
Episode overview
19, 1968
The Enterprise must destroy an enormous space amoeba before it reproduces and threatens known space.
2x19
A Private Little War
Episode overview
02, 1968
Kirk becomes involved in an arms race when the Klingons equip a native people with superior weaponry.
2x20
Return to Tomorrow
Episode overview
09, 1968
The Enterprise discovers three discorporeal intelligences who seek their help in gaining physical bodies... but one of them has plans of his own.
2x21
Patterns of Force
Episode overview
16, 1968
The Enterprise seek out a historical researcher and discover he has contaminated a culture, rendering it into a near-duplicate of Nazi Germany.
2x22
By Any Other Name
Episode overview
23, 1968
The Enterprise's command crew must thwart an invasion by aliens from another galaxy who plan to conquer this one.
2x23
The Omega Glory
Episode overview
01, 1968
The Enterprise investigates the disappearance of another starship and discovers a planet where the inhabitants are immortal... and engaged in a strange parallel of Earth's Cold War period.
2x24
The Ultimate Computer
Episode overview
08, 1968
The Enterprise is used to test a new super-sophisticated computer, but it soon develops a mind of its own.
2x25
Bread and Circuses
Episode overview
15, 1968
The Enterprise investigates the disappearance of a merchant ship crew on a planet ruled by a twentieth-century incarnation of ancient Rome.
2x26
Assignment: Earth
Episode overview
29, 1968
The Enterprise is sent on a mission back to Earth in the year 1968, where the crew encounters the mysterious Gary Seven, who claims to have been sent by advanced beings to save the planet.

Characters