A group of friends in England wakes up after a night of revelry to a society in chaos. Without warning, the world's communication systems have completely failed. Amidst their confusion, the protagonists venture out into their town to figure out the nature of the mysterious disruptions. They notice an eerie silence has fallen over the populace, compounded by a series of inexplicable occurrences. The group soon realizes that Earth is experiencing a global crisis, one that has crippled the infrastructure of urban life and instilled widespread fear and panic.

As they struggle to comprehend their new reality, it becomes apparent that the planet is under some form of attack, though the exact nature of the threat is unclear. The lack of information and the increasingly bizarre and frightening events sow discord among the friends, testing their loyalty and survival instincts. Through the ensuing chaos, military forces mobilize in the streets, but their presence is as much a signal of the gravity of the situation as it is a source of protection. As the group contends with the breakdown of societal order and the pervasive sense of dread, they must stick together while facing the looming threat that promises to forever alter humanity's future.