Storyline:The earth has become uninhabitable after a nuclear disaster. The last humans are in a bunker in cryogenic sleep. The two keepers Bauer (Norman Reedus) and Cartwright (Djimon Hounsou) live there to maintain the subterranean facility and to oversee the cold-sleepy people who will build a new society in due course. However, they have different views on how they should do their job and, moreover, they have to fight day by day to maintain their own mental health in this barren place. Over time, this leads to a conflict that is so extreme that ultimately the survival of humanity is at stake. The fact that one of them actually gave up hope long ago does not make things any easier.