Star Trek: The Original Series

In the 23rd Century, Captain James T. Kirk and the crew of the U.S.S. Enterprise explore the galaxy and defend the United Federation of Planets.

Genre: Action, Adventure, Sci-Fi

Cast:William Shatner , Leonard Nimoy , DeForest Kelley , Nichelle Nichols , James Doohan , Eddie Paskey , George Takei , Walter Koenig , Majel Barrett , John Winston , Paul Baxley , David L. Ross , Jay D. Jones , Grace Lee Whitney , Sean Morgan , Bart La Rue , Barbara Babcock , Dick Geary

0Season 1

S1.E0 ∙ The Cage

Tue, Oct 4, 1988

Capt. Pike is held prisoner and tested by aliens who have the power to project incredibly lifelike illusions.

1Season 1

S1.E1 ∙ The Man Trap

Tue, Sep 6, 1966

Dr. McCoy discovers his old flame is not what she seems after crew members begin dying from a sudden lack of salt in their bodies.

2Season 1

S1.E2 ∙ Charlie X

Thu, Sep 15, 1966

Captain Kirk must learn the limits to the power of a 17-year-old boy with the psionic ability to create anything and destroy anyone.

3Season 1

S1.E3 ∙ Where No Man Has Gone Before

Thu, Sep 22, 1966

The flight recorder of the 200-year-old U.S.S. Valiant relays a tale of terror--a magnetic storm at the edge of the galaxy.

4Season 1

S1.E4 ∙ The Naked Time

Thu, Sep 29, 1966

The crew is infected with a mysterious disease that removes people's emotional inhibitions to a dangerous degree.

5Season 1

S1.E5 ∙ The Enemy Within

Thu, Oct 6, 1966

A transporter malfunction splits Captain Kirk into two halves: one meek and indecisive, the other violent and ill tempered. The remaining crew members stranded on the planet cannot be beamed up to the ship until a problem is fixed.

6Season 1

S1.E6 ∙ Mudd's Women

Thu, Oct 13, 1966

The Enterprise picks up untrustworthy entrepreneur Harry Mudd accompanied by three beautiful women who immediately put a spell on all the male crew members.

7Season 1

S1.E7 ∙ What Are Little Girls Made Of?

Thu, Oct 20, 1966

Nurse Chapel is reunited with her fiancé; but his new obsession leads him to make an android duplicate of Captain Kirk.

8Season 1

S1.E8 ∙ Miri

Thu, Oct 27, 1966

The Enterprise discovers a planet exactly like Earth, but the only inhabitants are children who contract a fatal disease upon entering puberty.

9Season 1

S1.E9 ∙ Dagger of the Mind

Thu, Nov 3, 1966

Kirk and psychiatrist Helen Noel are trapped on a maximum security penal colony that experiments with mind control and Spock must use the Vulcan mind-meld to find a way to save them.

10Season 1

S1.E10 ∙ The Corbomite Maneuver

Thu, Nov 10, 1966

After the Enterprise is forced to destroy a dangerous marker buoy, a gigantic alien ship arrives to capture and condemn the crew as trespassers.

11Season 1

S1.E11 ∙ The Menagerie: Part I

Thu, Nov 17, 1966

Spock kidnaps the disabled Capt. Pike, hijacks the Enterprise, and then surrenders for court martial.

12Season 1

S1.E12 ∙ The Menagerie: Part II

Thu, Nov 24, 1966

At Spock's court martial, he explains himself with mysterious footage about when Capt. Pike was kidnapped by powerful illusion casting aliens.

13Season 1

S1.E13 ∙ The Conscience of the King

Thu, Dec 8, 1966

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.

14Season 1

S1.E14 ∙ Balance of Terror

Thu, Dec 15, 1966

The Enterprise must decide on its response when a Romulan ship makes a destructively hostile armed probe of Federation territory.

15Season 1

S1.E15 ∙ Shore Leave

Thu, Dec 29, 1966

The past three months have left the crew of the Enterprise exhausted and in desperate need of a break, but does this explain McCoy's encounter with a human-sized white rabbit or Kirk crossing paths with the prankster who plagued his days at Starfleet Academy?

16Season 1

S1.E16 ∙ The Galileo Seven

Thu, Jan 5, 1967

The Galileo, under Spock's command, crash-lands on a hostile planet. As the Enterprise races against time to find the shuttlecraft, Spock's strictly logical leadership clashes with the fear and resentment of his crew.

17Season 1

S1.E17 ∙ The Squire of Gothos

Thu, Jan 12, 1967

A being that controls matter and creates planets wants to play with the Enterprise crew.

18Season 1

S1.E18 ∙ Arena

Thu, Jan 19, 1967

For bringing hostility into their solar system, a superior alien race brings Captain Kirk into mortal combat against the reptilian captain of an alien ship he was pursuing.

19Season 1

S1.E19 ∙ Tomorrow Is Yesterday

Thu, Jan 26, 1967

The Enterprise is thrown back in time to 1960s Earth.

20Season 1

S1.E20 ∙ Court Martial

Thu, Feb 2, 1967

Kirk draws a court martial in the negligent death of a crewman.

21Season 1

S1.E21 ∙ The Return of the Archons

Thu, Feb 9, 1967

Seeking the answer to a century-old mystery, Kirk and crew encounter a vacantly peaceful society under a 6000-year autocratic rule that kills all those it can't absorb.

22Season 1

S1.E22 ∙ Space Seed

Thu, Feb 16, 1967

While on patrol in deep space, Captain Kirk and his crew find and revive a genetically engineered world conqueror and his compatriots from Earth's 20th century.

23Season 1

S1.E23 ∙ A Taste of Armageddon

Thu, Feb 23, 1967

Kirk and Spock must save their ship's crew when they are declared all killed in action in a bizarre computer-simulated war where the actual deaths must nevertheless occur.

24Season 1

S1.E24 ∙ This Side of Paradise

Thu, Mar 2, 1967

The Enterprise investigates a planet whose colonists should be dead, but are not.

25Season 1

S1.E25 ∙ The Devil in the Dark

Thu, Mar 9, 1967

The Enterprise is sent to a mining colony that is being terrorized by a mysterious monster, only to find that the situation is not that simple.

26Season 1

S1.E26 ∙ Errand of Mercy

Thu, Mar 23, 1967

With a war with Klingons raging, Kirk and Spock attempt to resist an occupation of a planet with incomprehensibly placid natives.

27Season 1

S1.E27 ∙ The Alternative Factor

Thu, Mar 30, 1967

Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.

28Season 1

S1.E28 ∙ The City on the Edge of Forever

Thu, Apr 6, 1967

When a temporarily insane Dr. McCoy accidentally changes history and destroys his time, Kirk and Spock follow him to prevent the disaster, but the price to do so is high.

29Season 1

S1.E29 ∙ Operation -- Annihilate!

Thu, Apr 13, 1967

The Enterprise crew attempts to stop a plague of amoeba-like creatures from possessing human hosts and spreading throughout the galaxy.

1Season 2

S2.E1 ∙ Amok Time

Fri, Sep 15, 1967

In the throes of his Pon Farr mating period, Spock must return to Vulcan to meet his intended future wife, betrothed from childhood.

2Season 2

S2.E2 ∙ Who Mourns for Adonais?

Fri, Sep 22, 1967

A powerful being claiming to be the Greek god Apollo appears and demands that the crew of the Enterprise disembark onto his planet to worship him.

3Season 2

S2.E3 ∙ The Changeling

Fri, Sep 29, 1967

A powerful artificially intelligent Earth probe, with a murderously twisted imperative, comes aboard the Enterprise and mistakes Capt. Kirk for its creator.

4Season 2

S2.E4 ∙ Mirror, Mirror

Fri, Oct 6, 1967

A transporter accident places Captain Kirk's landing party in an alternate universe, where the Enterprise is in the service of a barbarically brutal empire.

5Season 2

S2.E5 ∙ The Apple

Fri, Oct 13, 1967

Primitive inhabitants of Gamma Trianguli VI worship a god who orders them to kill visitors from the Enterprise.

6Season 2

S2.E6 ∙ The Doomsday Machine

Fri, Oct 20, 1967

The USS Enterprise encounters the wrecked USS Constellation and its distraught commodore who's determined to stop the giant planet-destroying robot ship that killed his crew.

7Season 2

S2.E7 ∙ Catspaw

Fri, Oct 27, 1967

Very alien visitors to our galaxy attempt to connect with human consciousness but miss, winding up tapping into the regions of human nightmares instead.

8Season 2

S2.E8 ∙ I, Mudd

Fri, Nov 3, 1967

Harry Mudd returns with a plot to take over the Enterprise by stranding the crew on a planet populated by androids under his command.

9Season 2

S2.E9 ∙ Metamorphosis

Fri, Nov 10, 1967

While returning to the Enterprise aboard the shuttlecraft, Kirk, Spock, McCoy and a seriously ill Federation diplomat find themselves kidnapped by an energized cloud.

10Season 2

S2.E10 ∙ Journey to Babel

Fri, Nov 17, 1967

The Enterprise hosts a number of quarrelling diplomats, including Spock's father, but someone on board has murder in mind.

11Season 2

S2.E11 ∙ Friday's Child

Fri, Dec 1, 1967

The Federation clashes with the Klingon Empire over mining rights to Capella IV. A sudden coup between its warrior-minded inhabitants forces Kirk's party to flee with the now dead leader's pregnant wife.

12Season 2

S2.E12 ∙ The Deadly Years

Fri, Dec 8, 1967

A landing party from the Enterprise is exposed to strange form of radiation which rapidly ages them.

13Season 2

S2.E13 ∙ Obsession

Fri, Dec 15, 1967

Capt. Kirk obsessively hunts for a mysterious cloud creature he encountered in his youth.

14Season 2

S2.E14 ∙ Wolf in the Fold

Fri, Dec 22, 1967

Kirk and the Enterprise computer become detectives after Scotty is accused of murdering women on a pleasure planet.

15Season 2

S2.E15 ∙ The Trouble with Tribbles

Fri, Dec 29, 1967

To protect a space station with a vital grain shipment, Kirk must deal with Federation bureaucrats, a Klingon battle cruiser and a peddler who sells furry, purring, hungry little creatures as pets.

16Season 2

S2.E16 ∙ The Gamesters of Triskelion

Fri, Jan 5, 1968

Kirk, Uhura and Chekov are trapped on a planet where abducted aliens are enslaved and trained to perform as gladiators for the amusement of bored, faceless aliens.

17Season 2

S2.E17 ∙ A Piece of the Action

Fri, Jan 12, 1968

The crew of the Enterprise struggles to cope with a planet of imitative people who have modeled their society on 1920s gangsters.

18Season 2

S2.E18 ∙ The Immunity Syndrome

Fri, Jan 19, 1968

The Enterprise encounters a gigantic energy draining space organism that threatens the galaxy.

19Season 2

S2.E19 ∙ A Private Little War

Fri, Feb 2, 1968

Peaceful, primitive peoples get caught up in the struggle between superpowers, with Kirk unhappily trying to restore the balance of power disrupted by the Klingons.

20Season 2

S2.E20 ∙ Return to Tomorrow

Fri, Feb 9, 1968

The Enterprise is guided to a distant, long-dead world where survivors of an extremely ancient race - existing only as disembodied energy - desiring the bodies of Kirk, Spock and astro-biologist Ann Mulhall so that they may live again.

21Season 2

S2.E21 ∙ Patterns of Force

Fri, Feb 16, 1968

Looking for a missing Federation cultural observer, Kirk and Spock find themselves on a planet whose culture has been completely patterned after Nazi Germany.

22Season 2

S2.E22 ∙ By Any Other Name

Fri, Feb 23, 1968

Galactic alien scouts capture the Enterprise for a return voyage and a prelude to invasion. Kirk's one advantage - they're not used to their adopted human form.

23Season 2

S2.E23 ∙ The Omega Glory

Fri, Mar 1, 1968

Responding to a distress signal, Kirk finds Captain Tracey of the U.S.S. Exeter violating the prime directive and interfering with a war between the Yangs and the Kohms to find the secret of their longevity.

24Season 2

S2.E24 ∙ The Ultimate Computer

Fri, Mar 8, 1968

Kirk and a sub-skeleton crew are ordered to test out an advanced artificially intelligent control system - the M-5 Multitronic system, which could potentially render them all redundant.

25Season 2

S2.E25 ∙ Bread and Circuses

Fri, Mar 15, 1968

The Enterprise crew investigates the disappearance of a ship's crew on a planet that is a modern version of the Roman Empire.

26Season 2

S2.E26 ∙ Assignment: Earth

Fri, Mar 29, 1968

While back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.

1Season 3

S3.E1 ∙ Spock's Brain

Fri, Sep 20, 1968

The crew of the Enterprise pursues a mysterious woman who has abducted Spock's brain.

2Season 3

S3.E2 ∙ The Enterprise Incident

Fri, Sep 27, 1968

An apparently insane Capt. Kirk has the Enterprise deliberately enter the Romulan Neutral Zone where the ship is immediately captured by the enemy.

3Season 3

S3.E3 ∙ The Paradise Syndrome

Fri, Oct 4, 1968

Trapped on a planet whose inhabitants are descended from Northwestern Native Americans, Kirk loses his memory and is proclaimed a God while the crippled Enterprise races back to the planet before it is destroyed by an asteroid.

4Season 3

S3.E4 ∙ And the Children Shall Lead

Fri, Oct 11, 1968

The Enterprise reaches a Federation colony where the adults have all killed themselves but the children play without care.

5Season 3

S3.E5 ∙ Is There in Truth No Beauty?

Fri, Oct 18, 1968

Lovely telepath Miranda is aide to Ambassador Kollos, in a box to stop insanity when humans see Medusans. She rejects Larry, a designer of Enterprise, and senses murderous intent nearby.

6Season 3

S3.E6 ∙ Spectre of the Gun

Fri, Oct 25, 1968

As punishment for ignoring their warning and trespassing on their planet, the Melkot condemn Capt. Kirk and his landing party to the losing side of a surreal recreation of the 1881 historic gunfight at the OK Corral.

7Season 3

S3.E7 ∙ Day of the Dove

Fri, Nov 1, 1968

Both humans and Klingons have been lured to a planet by a formless entity that feeds on hatred and has set about to fashion them into a permanent food supply for itself.

8Season 3

S3.E8 ∙ For the World Is Hollow and I Have Touched the Sky

Fri, Nov 8, 1968

The Enterprise discovers an apparent asteroid that is on a collision course with a planet is actually an ancient populated generation ship.

9Season 3

S3.E9 ∙ The Tholian Web

Fri, Nov 15, 1968

With Capt. Kirk and the derelict USS Defiant apparently lost, the Enterprise grapples with an insanity causing plague and an attack by the Tholians.

10Season 3

S3.E10 ∙ Plato's Stepchildren

Fri, Nov 22, 1968

After Dr. McCoy helps the leader of a planet populated by people with powerful psionic abilities, they decide to force him to stay by torturing his comrades until he submits.

11Season 3

S3.E11 ∙ Wink of an Eye

Fri, Nov 29, 1968

A group of aliens who exist in a state of incredible acceleration invade the Enterprise and abduct Capt. Kirk.

12Season 3

S3.E12 ∙ The Empath

Fri, Dec 6, 1968

Trapped in an alien laboratory, Kirk, Spock and McCoy meet an empath and are involved in a series of experiments.

13Season 3

S3.E13 ∙ Elaan of Troyius

Fri, Dec 20, 1968

While transporting an arrogant, demanding princess for a political marriage, Captain Kirk must cope both with her biochemical ability to force him to love her, as well as sabotage on his ship.

14Season 3

S3.E14 ∙ Whom Gods Destroy

Fri, Jan 3, 1969

Kirk and Spock are taken prisoners by a former starship captain named Garth, who now resides at, and has taken over, a high security asylum for the criminally insane.

15Season 3

S3.E15 ∙ Let That Be Your Last Battlefield

Fri, Jan 10, 1969

The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.

16Season 3

S3.E16 ∙ The Mark of Gideon

Fri, Jan 17, 1969

Kirk beams down to the planet Gideon and appears to find himself trapped on a deserted Enterprise. Spock on the real Enterprise must use his diplomatic skills to deal with the uncooperative inhabitants of Gideon and find the Captain.

17Season 3

S3.E17 ∙ That Which Survives

Fri, Jan 24, 1969

After the Enterprise landing party beams down to investigate a geologically interesting planet, their ship is hurled across the galaxy. Kirk and company find a deserted outpost guarded by the deadly image of a beautiful woman.

18Season 3

S3.E18 ∙ The Lights of Zetar

Fri, Jan 31, 1969

A mysterious, twinkling mass of sapient energy ravages an important archive and Scotty's new girlfriend may be linked to it.

19Season 3

S3.E19 ∙ Requiem for Methuselah

Fri, Feb 14, 1969

On a planet, looking for an urgent medicinal cure, Kirk, Spock and McCoy come across a dignified recluse living privately but in splendor with his sheltered ward and a very protective robot servant.

20Season 3

S3.E20 ∙ The Way to Eden

Fri, Feb 21, 1969

A group of idealistic hippies, led by an irrational leader, come aboard the U.S.S. Enterprise.

21Season 3

S3.E21 ∙ The Cloud Minders

Fri, Feb 28, 1969

Kirk and Spock are caught up in a revolution on a planet where intellectuals and artists live on a utopian city in the sky while the rest of the population toils in mines on the barren surface below.

22Season 3

S3.E22 ∙ The Savage Curtain

Fri, Mar 7, 1969

Kirk, Spock, Abraham Lincoln and Vulcan legend Surak are pitted in battle against notorious villains from history for the purpose of helping a conscious rock creature's understanding of a concept he does not understand, "good vs. evil".

23Season 3

S3.E23 ∙ All Our Yesterdays

Fri, Mar 14, 1969

When Kirk, Spock and McCoy investigate the disappearance of a doomed planet's population, they find themselves trapped in different periods of that world's past.

24Season 3

S3.E24 ∙ Turnabout Intruder

Tue, Jun 3, 1969

Captain Kirk's insane ex-lover Dr. Janice Lester forcibly switches bodies with him in order to take command of the Enterprise.