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
Did You Know?
The story line is similar to Fritz Lang's Metropolis about a two class society where the upper class lives in the utopian city Stratos in the sky, enjoying their privileged life, while the Troglytes' (cavemen) only existence is working in the mines for the pleasure a few - which is a key philosophical topic about 'the needs of the many outweigh the needs of the few' in the Star Trek universe. 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
You only take a mate once every seven years?
The seven-year cycle is biologically inherent in all Vulcans. At that time, the mating drive outweighs all other motivations.
And is there nothing that can disturb that cycle, Mr. Spock?
Extreme feminine beauty is always disturbing, Madam.
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