The BEST episodes of Star Trek season 3

Every episode of Star Trek season 3, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Star Trek season 3!

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, who is assisted by First Officer Mr. Spock, from the planet Vulcan, and Chief Medical Officer Dr. Leonard 'Bones' McCoy. With a determined crew, the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen led by Khan Noonien Singh. Their mission: to explore strange new worlds, to seek new life and new civilizations, to boldly go where no man has gone before.

Last Updated: 9/19/2024Network: NBCStatus: Ended
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The Enterprise Incident
star
7.63
1138 votes

#1 - The Enterprise Incident

Season 3 - Episode 2 - Aired 9/27/1968

An unusually tense and irritable Kirk orders his ship into the Romulan Neutral Zone, where it is promptly surrounded. Beamed to a Romulan ship, Kirk lies about the intrusion, then attacks Spock, who responds with a Vulcan death grip. While the female Romulan commander courts Spock, a secret mission unfolds.

Writer: D.C. Fontana
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The Tholian Web
star
7.47
885 votes

#2 - The Tholian Web

Season 3 - Episode 9 - Aired 11/15/1968

Captain Kirk finds himself trapped between dimensions on a disintegrating starship. The Enterprise crew works against time to rescue him as the Tholians weave a destructive energy web around their ship.

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All Our Yesterdays
star
7.38
866 votes

#3 - All Our Yesterdays

Season 3 - Episode 23 - Aired 3/14/1969

Kirk, Spock, and McCoy become trapped in the past of another world.

Directors: Marvin Chomsky
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Wink of an Eye
star
7.20
762 votes

#4 - Wink of an Eye

Season 3 - Episode 11 - Aired 11/29/1968

Invisible to humans due to their time-accelerated state, a group of aliens invade the Enterprise and attempt to abduct members of the crew to serve as breeding stock for their dying planet.

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Day of the Dove
star
7.17
841 votes

#5 - Day of the Dove

Season 3 - Episode 7 - Aired 11/1/1968

When the Enterprise brings aboard Klingon prisoners, an alien entity pits both sides against each other in an ever-escalating struggle.

Writer: Jerome Bixby
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Requiem for Methuselah
star
7.15
809 votes

#6 - Requiem for Methuselah

Season 3 - Episode 19 - Aired 2/14/1969

While seeking a cure for a fever ravaging the Enterprise, Kirk and Spock encounter Flint, a hermit-like Earthman, and his beautiful young ward.

Directors: Murray Golden
Writer: Jerome Bixby
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The Paradise Syndrome
star
7.13
964 votes

#7 - The Paradise Syndrome

Season 3 - Episode 3 - Aired 10/4/1968

Spock and the Enterprise crew race to destroy an asteroid threatening a primitive world where an amnesiac Kirk is proclaimed a god by its indigenous people.

Directors: Jud Taylor
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For the World is Hollow and I Have Touched the Sky
star
7.13
840 votes

#8 - For the World is Hollow and I Have Touched the Sky

Season 3 - Episode 8 - Aired 11/8/1968

The Enterprise must deflect an asteroid on a collision course with an inhabited planet... but discover the asteroid is a spaceship with a population unaware of the outside world.

Directors: Tony Leader
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Spectre of the Gun
star
7.08
857 votes

#9 - Spectre of the Gun

Season 3 - Episode 6 - Aired 10/25/1968

When coming to an exaphobic isolationist planet, Captain Kirk and his landing party are punished for trepassing. They are sentenced to death in a surreal recreation of the Gunfight at the OK Corral with the landing on the losing side.

Directors: Vincent McEveety
Writer: Gene L. Coon
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Is There in Truth No Beauty?
star
7.00
821 votes

#10 - Is There in Truth No Beauty?

Season 3 - Episode 5 - Aired 10/18/1968

The Enterprise hosts an alien ambassador whose outward appearance induces madness in humanoids. When Spock is driven mad after an unfortunate oversight, only the ambassador's jealous telepathic companion can save his mind.

Directors: Ralph Senensky
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The Cloud Minders
star
6.98
773 votes

#11 - The Cloud Minders

Season 3 - Episode 21 - Aired 2/28/1969

Kirk must resolve a mining dispute on a the cloud city of Stratos to acquire the resources to cure a space plague.

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Whom Gods Destroy
star
6.85
699 votes

#12 - Whom Gods Destroy

Season 3 - Episode 14 - Aired 1/3/1969

Kirk and Spock investigate an insane asylum where a former Starfleet captain is being held, only to discover that he has freed the inmates and is running the place.

Writer: Lee Erwin
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Turnabout Intruder
star
6.82
837 votes

#13 - Turnabout Intruder

Season 3 - Episode 24 - Aired 6/3/1969

The Enterprise is in danger when Janice Lester, one of Kirk's former lovers, steals his body.

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That Which Survives
star
6.73
622 votes

#14 - That Which Survives

Season 3 - Episode 17 - Aired 1/24/1969

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.

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Plato's Stepchildren
star
6.71
756 votes

#15 - Plato's Stepchildren

Season 3 - Episode 10 - Aired 11/22/1968

Kirk and his crew find themselves at the mercy of powerful individuals who possess mind-over-matter powers... and plan to use the Enterprise crew for their twisted entertainment.

Directors: David Alexander
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Let That Be Your Last Battlefield
star
6.69
720 votes

#16 - Let That Be Your Last Battlefield

Season 3 - Episode 15 - Aired 1/10/1969

The Enterprise finds itself host to two alien beings from the same planet, who share an intense and self-destructive hatred of each other.

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The Lights of Zetar
star
6.68
783 votes

#17 - The Lights of Zetar

Season 3 - Episode 18 - Aired 1/31/1969

The Enterprise must deal with discorporeal cloud-like corporeal aliens who have already destroyed the inhabitants of a library planet and plan to eliminate the Enterprise crew if they cannot acquire a human host.

Directors: Herb Kenwith
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Spock's Brain
star
6.63
1047 votes

#18 - Spock's Brain

Season 3 - Episode 1 - Aired 9/20/1968

Kirk leads the Enterprise in pursuit of a mysterious alien woman after she beams aboard the bridge and steals Spock's brain.

Directors: Marc Daniels
Writer: Gene L. Coon
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The Mark of Gideon
star
6.62
694 votes

#19 - The Mark of Gideon

Season 3 - Episode 16 - Aired 1/17/1969

Kirk beams down on a diplomatic mission... and finds himself in an Enterprise where all the crew have vanished and only a mysterious woman resides.

Directors: Jud Taylor
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The Savage Curtain
star
6.60
752 votes

#20 - The Savage Curtain

Season 3 - Episode 22 - Aired 3/7/1969

Kirk and Spock meet Abraham Lincoln and Surak of Vulcan and must do battle with some of histories most terrible villians.

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The Way to Eden
star
6.57
759 votes

#21 - The Way to Eden

Season 3 - Episode 20 - Aired 2/21/1969

The Enterprise picks up a group of space "hippies" looking for Eden.

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Elaan of Troyius
star
6.57
734 votes

#22 - Elaan of Troyius

Season 3 - Episode 13 - Aired 12/20/1968

The Enterprise must escort an alien princess to her marriage to seal an interplanetary alliance... but she becomes attracted to Kirk.

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The Empath
star
6.51
666 votes

#23 - The Empath

Season 3 - Episode 12 - Aired 12/6/1968

On a planet doomed to destruction, Kirk, Spock & McCoy become involved with two aliens who use them as laboratory animals in a bizarre series of tests on an alien empath who may be the savior of her planet.

Directors: John Erman
Writer: Joyce Muskat
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And the Children Shall Lead
star
6.21
880 votes

#24 - And the Children Shall Lead

Season 3 - Episode 4 - Aired 10/11/1968

The Enterprise travels to a planet where the members of a scientific team appear to have killed themselves. Their orphaned children are brought back to the ship, where they begin exhibiting odd behavior.

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