The plot revolves around a mysterious event that leads to sudden and widespread death among the human population, leaving towns eerily deserted. Pilot Jeff Nolan lands his plane and discovers that nearly everyone has succumbed to a cause unknown. As Jeff navigates through the empty streets, he encounters a few other survivors, including Peggy and Quinn Taggart, who share similar stories of baffling deaths and abandonment. The urgency to understand the catastrophe unites them as they seek refuge in a small hotel. Their suspicions grow as they notice that some people didn't just die naturally but show signs of a struggle.

As the group investigates further, they encounter humanoid robots that seem to be linked to the mass extinction event. The true danger becomes apparent when these robots revive the dead and turn them into mind-controlled zombies. The survivors come to realize they are up against not only an unknown disease but also menacing, unfeeling machines. Struggling to piece together the clues and find a way out, they must confront terrifying realities about their new world. The tension escalates as they fight for survival, their resort to cunning and collaboration highlighting the resilience of human spirit amidst a technological apocalypse.