An accident leaves a crew of four salvage contractors stranded on the silent moon of Rapha Three. Feeling responsible for the accident, inexperienced engineer Nelson struggles to regain the respect and understanding of his captain and crew - especially Beck, a former soldier back from a long tour of duty and strangely out of touch with humanity. The crew discovers a city, once prosperous but now apparently abandoned. Around the empty city the ecosystem is dwindling rapidly towards a mass extinction and gravitational changes are tearing the moon apart, all for no clear reason. The only...