Having recently completed revisiting all of the episodes of the original series of Star Trek, I’ve decided to post my rankings from worst to best. That being said, I found something of value in just about every episode of the show and believe it maintained a remarkable high quality over its run (except for “The Alternative Factor” which was just so boring I can’t even really remember what happened in it). Here are the links to all of my reviews which contain episode-by-episode synopses:
- Star Trek: The Original Series season one
- Star Trek: The Original Series season two
- Star Trek: The Original Series season three
80 The Alternative Factor
79 And the Children Shall Lead
78 Turnabout Intruder
77 Mudd’s Women
76 Whom Gods Destroy
75 The Omega Glory
74 That Which Survives
73 The Mark of Gideon
72 Requiem for Methuselah
71 Dagger of the Mind
70 A Private Little War
69 The Gamesters of Trikelion
68 Patterns of Force
67 The Return of the Archons
66 Catspaw
65 For the World is Hollow and I Have Touched the Sky
64 The Paradise Syndrome
63 The Apple
62 Elaan of Troyus
61 The Lights of Zetar
60 Friday’s Child
59 Court Martial
58 The Way of Eden
57 Spock’s Brain
56 The Squire of Gothos
55 What Are Little Girls Made Of?
54 The Immunity Syndrome
53 Return to Tomorrow
52 The Menagerie, part 2
51 The Menagerie, part 1
50 Charlie X
49 Who Mourns for Adonais?
48 Wink of an Eye
47 The Conscience of the King
46 Tomorrow Is Yesterday
45 The Ultimate Computer
44 Operation — Annihilate!
43 I, Mudd
42 Bread and Circuses
41 The Savage Curtain
40 The Man Trap
39 Let That Be Your Last Battlefield
38 The Deadly Years
37 The Galileo Seven
36 The Enterprise Incident
35 The Cloud Minders
34 Is There In Truth No Beauty
33 Metamorphosis
32 Errand of Mercy
31 Arena
30 Wolf in the Fold
29 Assignment: Earth
28 Plato’s Stepchildren
27 By Any Other Name
26 The Empath
25 Spectre of the Gun
24 The Cage
Every episode from here on is a stone-cold classic!
23 All Our Yesterdays
22 A Taste of Armageddon
21 The Enemy Within
20 Miri
19 The Tholian Web
18 A Piece of the Action
17 The Changeling
16 The Naked Time
15 This Side of Paradise
14 The Devil in the Dark
13 Obsession
12 Amok Time
11 Mirror, Mirror
10 Day of the Dove
9 Where No Man Has Gone Before
8 Space Seed
7 The Corbomite Maneuver
6 Balance of Terror
5 Shore Leave
4 Journey to Babel
3 The Doomsday Machine
2 The Trouble with Tribbles
1 The City on the Edge of Forever
What is your favorite episode of Star Trek and where does it rank? Let me know in the comments.
Panorama of the Mountains 
I will have to go through them again and pick my faves. I don’t remember them by title as much as what happens in them. Very cool you have taken the time to rank them.
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I know what you mean with the titles. Which one is “Tomorrow is Yesterday” and which is “All Our Yesterdays?” Which Shakespeare quote goes with which episode?
I kept a spreadsheet as I was going along and just plopped the letter grade for each episode and then sorted to make this list.
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My 10 favorites, not in any order (went to imdb to get synopsis):
The Cage, Miri, This Side of Paradise, Amok Time, Who Mourns for Adonis, Assignment: Earth, Space Seed, Metamorphosis, Plato’s Stepchildren, and The Savage Curtain.
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That’s a good ten. And it has some that don’t get as much love in the fandom.
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