As of July 2026, Star Trek Season 3 aired in 1968 with 24 episodes — streaming now on BINGE. Full episode guide and where to watch below.
Star Trek Season 3 poster
← Back to Star Trek

Star Trek Season 3

1968 24 Episodes Sci-Fi & Fantasy · Drama ⭐ 8/10

If you want science fiction that respects its own premise, Star Trek Season 3 is available on and right now. A compact run that never overstays its welcome. 1,515 people have weighed in on TMDB, and the verdict leans heavily positive. Watch it for William Shatner — the performance elevates material that could easily tip into self-seriousness. Put it on tonight and see for yourself.

There is a reason Star Trek Season 3 keeps coming up in conversation. Star Trek Season 3 treats its concept seriously enough to follow it all the way through. Season 3 of Star Trek includes 24 episodes. It aired from September 1968 to June 1969. This season stars William Shatner, Leonard Nimoy and DeForest Kelley. William Shatner and Leonard Nimoy lead a cast that brings real weight to the material. It was aired in 1968. What separates Star Trek Season 3 from lesser genre entertainment is a willingness to let the concept cost the characters something. It rarely drops the ball, and when it does, it recovers fast.

For late-night viewing or a proper weekend binge, Star Trek Season 3 fits the bill. If you have run out of similar titles to watch, this is a strong next pick. Best experienced as a single, sustained watch if your schedule allows. Watch for William Shatner in particular — the performance elevates the material. Satisfying on multiple levels.

📡 Where to Watch Star Trek Season 3

🇦🇺 Australia
🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
TV Butler Pro app
🎩 TV Butler Pro
You find it. Your history remembers it.

🎬 Star Trek Season 3 — Episode Guide

E1
Spock's Brain
1968-09-20
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.
E2
The Enterprise Incident
1968-09-27
The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
E3
The Paradise Syndrome
1968-10-04
An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
E4
And the Children Shall Lead
1968-10-11
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.
E5
Is There in Truth No Beauty?
1968-10-18
The Enterprise travels with an alien ambassador whose appearance induces madness.
E6
Spectre of the Gun
1968-10-25
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.
E7
Day of the Dove
1968-11-01
An alien force drives the crew of the Enterprise into brutal conflict with the Klingons.
E8
For the World Is Hollow and I Have Touched the Sky
1968-11-08
The crew of the Enterprise rush to stop an asteroid from colliding with a Federation world, but discover the asteroid is actually an inhabited generation ship.
E9
The Tholian Web
1968-11-15
Captain Kirk is caught between dimensions while the crew of the Enterprise works to retrieve him. All the while, the Tholians demand that the Enterprise leave their space.
E10
Plato's Stepchildren
1968-11-22
The crew of the Enterprise encounters an ageless and sadistic race of humanoids with the power of telekinesis and who claim to have organized their society around Ancient Greek ideals.
E11
Wink of an Eye
1968-11-29
Invisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".
E12
The Empath
1968-12-06
While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.
E13
Elaan of Troyius
1968-12-20
The USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.
E14
Whom Gods Destroy
1969-01-03
Captain Kirk faces off with a demented shape-shifting starship captain determined to control the universe.
E15
Let That Be Your Last Battlefield
1969-01-10
The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.
E16
The Mark of Gideon
1969-01-17
A race of overpopulated aliens abduct Captain Kirk to solve their problem.
E17
That Which Survives
1969-01-24
Kirk, McCoy, and Sulu are stranded on a barren planet where a mysterious woman attempts to kill them one at a time, while the Enterprise must travel halfway across the galaxy to rescue them.
E18
The Lights of Zetar
1969-01-31
Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.
E19
Requiem for Methuselah
1969-02-14
The crew of the Enterprise encounter an immortal human in this science fiction variation on Shakespeare's The Tempest.
E20
The Way to Eden
1969-02-21
The Enterprise picks up a group of space "hippies" looking for Eden.

🎭 Cast of Star Trek Season 3

William Shatner
William Shatner
James T. Kirk
Leonard Nimoy
Leonard Nimoy
Spock
DeForest Kelley
DeForest Kelley
Dr. McCoy
James Doohan
James Doohan
Scott
Walter Koenig
Walter Koenig
Pavel Chekov
George Takei
George Takei
Sulu
Nichelle Nichols
Nichelle Nichols
Uhura

📋 All Seasons of Star Trek

Season 1Season 2

Never Lose Track of Star Trek

TV Butler Pro lets you search every streaming service in seconds, tracks what you've watched, and works completely free. No app download needed.

🎩 Try TV Butler Pro Free