On October 16, 2013, 437 students, 52 teachers, and 24 additional staff from Bay Point Preparatory High School in suburban Milwaukee, WI vanished without a trace, finding themselves countless light years away in the middle of an ancient, primordial wilderness. Now, having barely escaped their confrontation with the swarm, the hunters have led Adrian, Karen, Calder, and the others to their breathtaking home base. But just when they think they may have found answers to what brought them to this alien world, a horror from the teens' past rears its ugly head...