In a twisted social experiment, eighty Americans are locked in their high-rise corporate office in Bogotá, Colombia, and ordered by an unknown voice coming from the company's intercom system to participate in a deadly game of kill or be killed.
Alex travels to Moscow on business, unaware of the devastation that Dmitri's actions have caused and the danger he is rushing into. As the full horror of the situation unfolds, Alex is forced to play the one card he has left to save himself before facing a final showdown with Vadim.