Survival is just the beginning . . . After a dangerous cross-country journey through the post-apocalyptic United States, Saul and his companions reach Fort Detrick only to find it infested by the living dead. If they are to have any hope of creating a cure they must take back the facility one bloody floor at a time.The war for humanity's future has just begun.In the aftermath of the zombie apocalypse, humankind has been pushed to the brink of extinction. For the few remaining survivors, each day is a test of survival. Can they fight back or will they fall prey to the relentless undead hordes?