The Doomsday Machine
Episode 6 of 26 within Season Two. Item 36 of 90 overall.
Production number 6149-35.
Norman Spinrad - Writer
Marc Daniels - Director
397 votes

Stardate: 4202.9 --The Enterprise responds to a distress call in the L370 system and discovers that something has destroyed almost every planet in the system.

Elsewhere, they also find its sister ship the U.S.S. Constellation, which has been badly damaged. The commander of the Constellation, Commodore Matt Decker, says that his crew evacuated to one of the pulverized planets and was lost, and the attacker was a giant robot "doomsday machine."

Meanwhile, Kirk is stranded on the Constellation when the doomsday machine attacks again, and the shell-shocked Decker tries to take command of the Enterprise to lead a futile attack.

original airdate--October 20, 1967  

network: NBC

music:"Theme from Star Trek" "Where No Man Has Gone Before" by Alexander Courage


Starships: U.S.S. Constellation NCC-1017 [destroyed]

Trivia--According to the book "The Making of 'Star Trek'", the scanning device that Scotty takes from the Constellation's recess closet was designed by Mr. Spock.

  • The overload of a starship's impulse engine will result in a fusion expolsion of 97.835 megatons.


Space: the final frontier. These are the voyages of the starship Enterprise. Its five-year mission: to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no man has gone before.

Klingon: logh: HeH Qav'e'. DaH 'entepray' Duj lengmey lutalu'. Qu' vagh-DIS: Huj chu' qo', yISam yIn tayqeq chu', vay' boldly nuqDaq V pagh 'ej explore.

related items

Previous episode :
035 The Apple
Next episode :
037 Catspaw

alternative title

Also known as - Klingon=chenmoHMogh HablI'

regional titles

De Doomsday Machine
The Doomsday Machine
La machine infernale
An Meaisín Doomsday
La macchina del giudizio universale
La M·quina del Juicio Final