One night. That was all it took. Creatures that once lived in the shadows, hidden from humankind, have risen, spreading like a plague across the globe over the course of a single night. Their numbers growing exponentially through infection, these seemingly unkillable creatures have swallowed up whole cities and collapsed unprepared governments. Survivors call it The Purge. Against all odds, a disparate group of survivors has emerged from that blood-soaked night that devastated the planet and reduced humanity to an endangered species. Among the survivors are two ex-Army Rangers, a businesswoman, and a third-year medical student. But surviving The Purge was one thing - staying alive is another matter entirely. Hope exists in the countryside, in the form of a self-sustaining underground facility designed to withstand any calamity. But in order to reach its safety, the survivors must travel hundreds of treacherous miles, with the night - and the creatures that dwell within it - always at their backs. The rules are simple: stay out of the dark, load up on silver bullets, and whatever you do, stay alive. The road to salvation has begun...