Set in the 1990s, the novel follows eight scientists—four men and four women—who are sealed inside "Ecosphere II," a massive, airtight glass dome in the Arizona desert designed to mimic Earth's ecosystems. Monitored by a power-hungry mastermind outside, the group must survive entirely on what they can grow and sustain within the dome for two years. As the isolation intensifies, personal rivalries, sexual tensions, and psychological fractures begin to threaten the stability of the entire closed-system environment, turning the scientific mission into a desperate struggle for control