A diverse group of men and women unknowingly selected by the government is suddenly transported to an underground facility designed to ensure their survival following a catastrophic event on the Earth's surface. Confusion and fear grip the survivors as they struggle to comprehend their predicament and the purpose behind their selection. The facility is equipped with advanced technology and automated systems to sustain life for an extended period, yet the survivors are left to figure out how to coexist and manage their new environment. Tensions rise as personalities clash and suspicions arise about the true nature of their situation.

As they explore the confines of their subterranean refuge, they discover that they are not alone. The facility harbors a deadly threat from an unforeseen quarter, turning their haven into a perilous trap. With limited resources and the constant pressure of looming danger, the survivors must find a way to work together if they hope to stay alive. Trust becomes a luxury, and the veneer of civilization erodes under the stress of their circumstances, leading to desperate measures as they confront both internal conflicts and external dangers.