In a near future where life on Earth has been decimated, Paul and his twin teenage sons, Thomas and Joseph, survive in a remote farmhouse. By day, they live in tranquility, but at night, ferocious creatures emerge, consuming all in their path. When Thomas doesn't return home before sundown, Paul ventures out to find him, leading to a nightmarish battle. Gravely wounded, Paul's sons must now use everything he has taught them to keep him alive and survive the coming night.