Season 1     Season 2      Season 3    

Please note that the episodes are listed in the order they were aired and as they appear on the DVD release, not in the order in which they were filmed as they may appear elsewhere.

The Cage (Pilot episode)

Episode 1 - The Man Trap (5th Episode filmed)

Episode 2 - Charlie X

Episode 3 - Where no man has gone before (Second Pilot Episode)

Episode 4 - The Naked time

Episode 5 - The Enemy Within

Episode 6 - Mudd’s Women

Episode 7 - What are little Girls made of?

Episode 8 - Miri

Episode 9 Dagger of the mind

Episode 10 - The Corbomite Maneuvre (1st episode filmed after pilots)

Episode 11 - The Menagerie part - 1

Episode 12 - The Menagerie part - 2

Episode 13 - The conscience of the King

Episode 14 - Balance of Terror

Episode 15 - Shore Leave

Episode 16 - The Galileo seven

Episode 17 - The Squire of Gothos

Episode 18 - Arena

Episode 19 - Tomorrow is yesterday

Episode 20 - Court Martial

Episode 21 - The return of the Archons

Episode 22 - Space seed

Episode 23 - A taste of Armageddon

Episode 24 - This side of Paradise

Episode 25 - The Devil in the dark

Episode 26 - Errand of Mercy

Episode 27 - The Alternative Factor

Episode 28 - City on the Edge of Forever

Episode 29 - Operation Annihilate 

Episode 4 - Mirror, Mirror

Episode 5 - The Apple

Episode 6 -The Doomsday machine

Episode 7 - Cat’s paw

Episode 8 - I Mudd

Episode 9 - Metamorphosis

Episode 10 - Journey to Babel

Episode 11 - Friday’s Child

Episode 12 - The Deadly Years

Episode 13 - Obsession

Episode 14 - Wolf in the fold

Episode 15 - The Trouble with Tribbles

Episode 16 - The Gamesters of Triskelion

Episode 17 - A piece of the action

Episode 18 - The Immunity Syndrome

Episode 19 - A private little War

Episode 20 - Return to tomorrow

Episode 21 - Patterns of Force

Episode 22 - By any other name

Episode 23 - The Omega glory

Episode 24 - The Ultimate Computer

Episode 25 - Bread and Circuses

Episode 6 - Spectre of the Gun

Episode 7 - Day of the dove

Episode 8 - For the World is hollow, and I have touched the sky

Episode 9 - The Tholian Web

Episode 10 - Plato’s Stepchildren

Episode 11 - Wink of an eye

Episode 12 - The Empath

Episode 13 - Elaan of Troyius

Episode 14 - Whom Gods destroy

Episode 15 - Let that be your last battlefield

Episode 16 - The Mark of Gideon

Episode 17 - That which survives

Episode 18 - The Lights of Zetar

Episode 19 - Requiem for Methuselah

Episode 20 - The way to Eden

Episode 21 - The Cloud Minders

Episode 22 - The Savage curtain

Episode 23 - All our yesterdays

Episode 24 - Turnabout Intruder