Space. The Final Frontier. The U.S.S. Enterprise embarks on a five year mission to explore the galaxy. The Enterprise is under the command of Captain James T. Kirk with First Officer Mr. Spock, from the planet Vulcan. With a determined crew, the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen lead by Khan Noonian Singh. Their mission is to explore strange new worlds, to seek new life and new civilizations, and to boldly go where no man has gone before.
Where to Watch Star Trek
Where to stream every episode from all 3 seasons of Star Trek. Filter these episodes by what's available to watch free or on your streaming services using the tabs above.
Season 1Netflix | Prime Video | Hulu | CBS All Access | Rent or Buy
S01 E01Sep 9, 1966
The Man Trap Sep 9, 1966 Kirk and his crew are at deadly risk from an alien creature that feeds on the salt in a human body and can take on any form.
S01 E02Sep 16, 1966
Charlie X Sep 16, 1966 Captain Kirk must learn the limits to the power of a 17-year-old boy with the psychic ability to create anything and destroy anyone.
S01 E03Sep 23, 1966
Where No Man Has Gone Before Sep 23, 1966 While exploring the edge of the galaxy, the Enterprise encounters an energy barrier that gives two crewmen godlike powers.
S01 E04Sep 30, 1966
The Naked Time Sep 30, 1966 A strange alien substance causes the crew to act out their deepest inhibitions, while the ship plummets out of orbit.
S01 E05Oct 7, 1966
The Enemy Within Oct 7, 1966 A transporter malfunction causes Captain Kirk to split into his "good" and "evil" selves, and a landing party will freeze to death if they don't merge the two back together.
S01 E06Oct 14, 1966
Mudd's Women Oct 14, 1966 The Enterprise picks up a intergalactic conman, Harry Mudd, and three incredibly beautiful women who harbor a dark secret.
Season 2Netflix | Prime Video | Hulu | CBS | CBS All Access | Rent or Buy
S02 E01Sep 16, 1967
Amok Time Sep 16, 1967 First Officer Spock returns to his home world for a brutal Vulcan mating ritual.
S02 E02Sep 23, 1967
Who Mourns for Adonais? Sep 23, 1967 The crew of the Enterprise are held captive by an alien who turns out to be the Greek god Apollo.
S02 E03Sep 30, 1967
The Changeling Sep 30, 1967 The crew of the USS Enterprise deals with an indestructible planet-destroying space probe.
S02 E04Oct 7, 1967
Mirror, Mirror Oct 7, 1967 A transporter mishap swaps Captain Kirk and his companions with their evil counterparts in a parallel universe. In the so-called Mirror Universe, the Enterprise is a ship of the Terran Empire, an organization as evil as the United Federation of Planets is benevolent.
S02 E05Oct 14, 1967
The Apple Oct 14, 1967 The crew of the Enterprise visits a mysterious paradisical planet controlled by a computer that is served by the local inhabitants.
S02 E06Oct 21, 1967
The Doomsday Machine Oct 21, 1967 The starship Enterprise and its heavily-damaged sister ship, the USS Constellation, must work together to stop an alien planet-killing machine headed for the heart of Federation territory.
Season 3Netflix | Prime Video | Hulu | CBS | CBS All Access | Rent or Buy
S03 E01Sep 21, 1968
Spock's Brain Sep 21, 1968 An alien female beams aboard the ship and, after incapacitating the rest of the crew, surgically removes Spock's brain. Kirk and the crew have just hours to locate and replace it before Spock's body dies.
S03 E02Sep 28, 1968
The Enterprise Incident Sep 28, 1968 The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
S03 E03Oct 5, 1968
The Paradise Syndrome Oct 5, 1968 An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
S03 E04Oct 12, 1968
And the Children Shall Lead Oct 12, 1968 On a distant planet, Kirk, Spock and McCoy find a scientific team dead, and their children who, unknown to the crew, have great powers at their disposal.
S03 E05Oct 19, 1968
Is There in Truth No Beauty? Oct 19, 1968 The Enterprise travels with an alien ambassador whose appearance induces madness.
S03 E06Oct 26, 1968
Spectre of the Gun Oct 26, 1968 Having been found trespassers into Melkotian space, Captain Kirk and his companions are sent to die in a re-enactment of the gunfight at the O.K. Corral.