Back from his final deployment with the US Marines, Alan Carson is hiking across New Mexico’s Gila Wilderness to ponder his future and put the war in his past. When his best friend and squad leader, Sergeant Kurt Timms, took a Taliban bullet because of bad intel, Alan made a promise to his dying friend. He would come here to see the rugged mountains that were Kurt’s boyhood stomping grounds. But deep in a trackless canyon, miles from any trail, Alan finds something else: the body of a dead man at the foot of a cliff, an ancient cave…and a passageway too intriguing to ignore.

When a viral apocalypse kills 97 percent of the people on the planet, the survivors' humanity is hanging by a thread. Amid the leftovers of civilization, ex-Army Ranger Jason Larsen is reminded of the meaning of hope, family, and loyalty by a dog and a young boy who are as alone as he is. The survivors he seems to collect become family, and that is very bad news for those who think they run the apocalypse.

Chuck, a 15-year-old hardened war orphan has seen friends killed, and now lies dying on a salvage battlefield himself. But the universe has a different plan for Chuck. A mortally wounded man offers to save his life, and Chuck accepts his help. A moment later, Chuck regrets his decision, when his rescuer forces Chuck’s mouth open and a reptilian octopus is ejected from his rescuer’s mouth and into his.

At the end of the world. Nick Peterson never expected to be stuck with a bunch of kids. A 17-year-old boy shouldn’t be responsible for keeping other people alive. But he didn’t have much choice in the matter. That’s what happens when everyone else dies.

An EMP bomb blasts a small town in Pennsylvania back to primitive times. Former Marine Raider Lori, a committed survivalist, finds herself in a race against the coming winter and a growing foreign threat to ensure her family's survival. As society crumbles around her, will Lori's meticulous preparation be sufficient, or will she fall to the encroaching chaos and snow?