As they settle into their new life among friends and fellow survivors within the university's hidden tunnel system, the U.S. military continues its relentless seizure of seemingly innocent civilians. After a student is openly murdered by soldiers, the Birch's and their close group of friends decide to take their chances on the outside. They make their way to a nearby survivalist camp, where Joe's brother has presumably hidden to ride out the disaster. However, they quickly discover that the survivalist camp is anything but safe, and that nothing is what it seems in the aftermath of the RECKONING.