While Captain Kirk investigates whether an actor is actually a presumed dead mass murderer, a mysterious assailant is killing the people who could identify the fugitive.
Aired: Sep 8, 1966Dr. McCoy discovers his old flame is not what she seems after crew members be...
Aired: Sep 15, 1966Captain Kirk must learn the limits to the power of a 17-year-old boy with the...
3. Where No Man Has Gone Before
Aired: Sep 22, 1966The flight recorder of the 200-year-old U.S.S. Valiant relays a tale of terro...
Aired: Sep 29, 1966The crew is infected with a mysterious disease that removes people's emotiona...
Aired: Oct 6, 1966A transporter malfunction splits Captain Kirk into two halves: one meek and i...
Aired: Oct 13, 1966The Enterprise picks up untrustworthy entrepreneur Harry Mudd accompanied by ...
7. What Are Little Girls Made Of?
Aired: Oct 20, 1966Nurse Chapel is reunited with her fiancé; but his new obsession leads him to ...
Aired: Oct 27, 1966The Enterprise discovers a planet exactly like Earth, but the only inhabitant...
Aired: Nov 3, 1966Kirk and psychiatrist Helen Noel are trapped on a maximum security penal colo...
Aired: Nov 10, 1966After the Enterprise is forced to destroy a dangerous marker buoy, a gigantic...
Aired: Nov 17, 1966Spock kidnaps the disabled Capt. Pike, hijacks the Enterprise, and then surre...
Aired: Nov 24, 1966At Spock's court martial, he explains himself with mysterious footage about w...
13. The Conscience of the King
Aired: Dec 8, 1966While Captain Kirk investigates whether an actor is actually a presumed dead ...
Aired: Dec 15, 1966The Enterprise must decide on its response when a Romulan ship makes a destru...
Aired: Dec 29, 1966The past months have left the crew exhausted and in desperate need of a break...
Aired: Jan 5, 1967The Galileo, under Spock's command, crash-lands on a hostile planet. As the E...
Aired: Jan 12, 1967A being that controls matter and creates planets wants to play with the Enter...
Aired: Jan 19, 1967For bringing hostility into their solar system, a superior alien race brings ...
Aired: Jan 26, 1967The Enterprise is thrown back in time to 1960s Earth.
Aired: Feb 2, 1967Kirk draws a court martial in the negligent death of a crewman.
Aired: Feb 9, 1967Seeking the answer to a century-old mystery, Kirk and crew encounter a vacant...
Aired: Feb 16, 1967While on patrol in deep space, Captain Kirk and his crew find and revive a ge...
Aired: Feb 23, 1967Kirk and Spock must save their ship's crew when they are all declared killed ...
Aired: Mar 2, 1967The Enterprise investigates a planet whose colonists should be dead, but are ...
Aired: Mar 9, 1967The Enterprise is sent to a mining colony that is being terrorized by a myste...
Aired: Mar 23, 1967With a war with Klingons raging, Kirk and Spock attempt to resist an occupati...
Aired: Mar 30, 1967Existence itself comes under threat from a man's power-struggle with his alte...
28. The City on the Edge of Forever
Aired: Apr 6, 1967When a temporarily insane Dr. McCoy accidentally changes history and destroys...
Aired: Apr 13, 1967The Enterprise crew attempts to stop a plague of amoeba-like creatures from p...
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