Parents David and Andrea lose their third child that they have been awaiting in a miscarriage, leaving David a shell of his former self, replaced now by a self loathing and rage stricken misanthrope. At the behest of their marriage counselor, the two of them along with their two children join their extended family for a remote hunting trip in an attempt to repair their broken lives. But on this trip, they soon find themselves at the mercy of someone much colder and unforgiving than the indifference of the world they attempted to flee, and David's family must decide if it is this new threat they must fear, or what it is David may have become in the face of it.

After visiting a funeral, six friends are slowly hunted one by one during their trip up north together as the full moon rises.

The government has quarantined a small town where either a disease similar to rabies has appeared in the local human population or where (what seems impossible) the dead are beginning to come back to life and attack the living. Having missed most of the evacuation while barricaded inside of an old house, Ben, his younger sister Erin, and their friends remain trapped within the quarantine zone. Hell-bent on getting his sister to safety at all costs, Ben must lead the group across a ravaged city filled with flesh craving zombies in search of a working radio to contact the military and ensure them a ride on the last evacuation helicopter out of the quarantine zone. But with pre-existing personal tensions in the group and an entire city of zombies driven by hunger to find and kill anyone they come across, the odds are stacked against them.

The viewer is presented with footage found at the scene of a crime on the land of an old farmhouse where seventy years prior, the infamous "Moorland murders" took place.