Bill is having a good time at his new job in a small town near the big city, unloading boxes, setting up shop, and chatting with a coworker and a customer, until suddenly he hears a loud explosion, accompanied by a bright, white light, and piercing noises and screams. He hears sirens, buildings collapsing, and feels the earth quaking. Cell towers and internet are long gone, and safety is nowhere to be found. His friends are suddenly vanished, and all he can think about is getting to his girlfriend, Claire, and figuring out what the hell is going on.