Kirk and Spock are caught up in a revolution on a planet where intellectuals and artists live on a utopian city in the sky while the rest of the population toils in mines on the barren surface below.



(created by), (teleplay by) | 2 more credits »

Watch Now

With Prime Video






Episode complete credited cast:
Kirk Raymond ...
Cloud Guard #1 (as Kirk Raymone)
Jimmy Fields ...
Cloud Guard #2
Ed Long ...
Troglyte Prisoner
Harv Selsby ...
Cloud Guard #3


In order to save an inhabited planet from being destroyed by a botanical plague, the Enterprise goes to pick up zenite, the mineral cure, on the only known planet where it is mined. When Kirk and Spock beam down, they are attacked by 'troglites' (troglodyte miners) but not captured. High council adviser Plasus intervenes and brings them to Stratos, a luxurious metropolis which literally floats in the sky. However, it is under attack from 'disruptors', troglite revolutionaries who want equal life conditions for their peers. They do all the hard work, mainly toiling miserably in mines and dwell in caves on the barren surface below. Dr. McCoy ascertains that the alleged intellectual inferiority of the troglites is not genetic but the reversible effect of exposure to an invisible gas emitted by the zenite. Written by KGF Vissers

Plot Summary | Add Synopsis


See all certifications »


Official Sites:



Release Date:

28 February 1969 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
See  »

Did You Know?


This takes place in 2269. See more »


Plasus rules as a cruel dictator over Ardana, suspending civil liberties and hoarding resources. This is contrary to the justice- and fairness-oriented ways of the United Federation of Planets. As Ardana is part of the Federation, the Prime Directive does not apply in the matter. Plasus is a criminal and Kirk & Spock are officers of the law. They waste valuable time negotiating and working out deals with Plasus when they have a legal obligation to arrest him and return the hoarded resources to their rightful owners. See more »


Scott: The Advisor looked mighty angry. I hope he doesn't give the captain too much trouble.
Mr. Spock: The captain will employ his usual diplomatic balm.
See more »


Referenced in Elysium (2013) See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Stratos or maybe Elysium
24 August 2014 | by (Buffalo, New York) – See all my reviews

Anyone who has seen Matt Damon's fine film Elysium will immediately recognize the parallels with his Star Trek episode. I wouldn't be surprised if the creators of Elysium were influenced by this story.

The mission of the Enterprise is to get to this planet for a shipment of an ore called Zenite which will help with a biological plague on a nearby federation world. This planet has a social structure similar to the one on Earth that has developed in Elysium. The vast majority live on the surface and work in the mines taking out the Zenite. They also for the most part are not much above the evolutionary scale than Cro-Magnon Man.

In the meantime an elite has built a city in the clouds called Stratos where they live at their leisure. Looks very much like Elysium and they rule and live off the other's toil.

So the mission of William Shatner and others is to get that Zenite and sad to say they have to violate the Prime Directive and institute the beginnings of social change to do it. Some medical research into Zenite and its effects by DeForest Kelley certainly helps.

Jeff Corey plays the first adviser of Stratos and an implacable defender of the established order. He and Shatner really can't stand each other.

Think Elysium and you'll realize how far ahead of its times this particular Star Trek episode was.

5 of 5 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Guy Williams McCartney42
Most hated villain? mckee_d
Interracial Kiss--Good or Bad? shermandemetrius
City On The Edge Of Forever timmytony80
Should I Keep Going? preykousis
The Animated Series rockerchicksg1
Discuss The Cloud Minders (1969) on the IMDb message boards »

Contribute to This Page

Create a character page for: