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The Deadly Years 

A landing party from the Enterprise is exposed to strange form of radiation which rapidly ages them.


Joseph Pevney


Gene Roddenberry (created by), David P. Harmon


Episode complete credited cast:
William Shatner ... Capt. Kirk
Leonard Nimoy ... Mr. Spock
DeForest Kelley ... Dr. McCoy
Charles Drake ... Commodore Stocker
Sarah Marshall Sarah Marshall ... Janet Wallace
James Doohan ... Scott
George Takei ... Sulu
Nichelle Nichols ... Uhura
Majel Barrett ... Christine Chapel
Walter Koenig ... Chekov
Felix Locher Felix Locher ... Mr. Johnson
Carolyn Nelson Carolyn Nelson ... Yeoman Atkins
Laura Wood Laura Wood ... Mrs. Johnson
Beverly Washburn ... Arlene Galway




Rapid aging afflicts all six colonists on Gamma Hydra IV and five members of Kirk's six-man landing party - all but Chekov. With the Neutral Zone so close, suspicion falls on the Romulans testing a new weapon, but is it? With time running out, answers are elusive. As Kirk's memory progressively deteriorates, regulations necessitate a competency hearing no one wants - the outcome of which may eventually lead the Enterprise to its destruction with all aboard. Written by statmanjeff

Plot Summary | Plot Synopsis


TV-PG | See all certifications »

Did You Know?


Kirk's age (34) is established in this episode. See more »


At the start of the competency hearing, Spock states that Captain Kirk is entitled to question the witnesses after the board has finished examining them. He then questions four witnesses as well as the ship's computer without ever giving Kirk an opportunity to do so. He even dismisses one of the witnesses from the hearing immediately after her direct examination. See more »


Captain James T. Kirk: [after his competency hearing has been concluded and he's back in his quarters] I made a fool of myself in there. I shouldn't have let them confuse me... rattle me.
Janet Wallace: [trying to be sympathetic] Everybody understood.
Captain James T. Kirk: But I am not *old*, Jan. I'm NOT.
[begins wheezing]
Captain James T. Kirk: A few muscular aches doesn't make a man old. And you don't run a starship with your arms, you run it with your head! And my brain's as sharp as it ever was. A simple case of radiation poisoning and they relieve me of my command?
Captain James T. Kirk: [...]
See more »

Alternate Versions

Special Enhanced version Digitally Remastered with new exterior shots and remade opening theme song See more »


Referenced in Sex Trek: Where No Man Has Cum B4 (2007) See more »

User Reviews

Star Trek Goes Grey. Like Alzheimers, Very Forgettable
14 September 2014 | by mike48128See all my reviews

No major special effects used at all, except for generally good aging make-up. However, the poor female "victim" who dies (wearing blue instead of red, this time) looks like she is wearing a "wrinkle mask"! The landing party is infected with some sort of condition or disease that ages everyone 30 years in a day. Why Chekov doesn't age is medical mumbo-jumbo, as is the reason for the female's aging: a faster metabolism. How dumb. No glowing or zapping cloud effect. Everyone just gets greyer, more wrinkled, more forgetful, and walks stoop-shouldered like Walter Brennan. No visual regression back to health, either. Kirk just recovers, and wears a tighter uniform. Also, the medical serum "cure" is quite vague and implausible. Another good story idea, badly visualized. Have you every noticed that the early Star-Trek computers look like they have lit-up jelly beans as flashing lights, and look like Radio Shack "Science-Fair" project boxes?

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8 December 1967 (USA) See more »

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