The Terranauts - Occasion

Linda is desperate to be one of the lucky eight chosen to take part in the world's most ambitious ecological experiment. She knows that she can survive two years under the glass dome of Ecosphere II. Competition is fierce between the hopefuls, among them smooth-talking PR man Ramsay, and Dawn, a naïve beauty. Inside the humid microcosm, the terranauts' labours over crops and livestock, their hostilities and sexual dalliances are all observed by tourists who come to gawp, Mission Control's cameras and the watchful eye of the media.
As they struggle to control nature, and hunger sets in, the snake in this Eden starts to look unmistakably human...