An explosion at the army depot unleashes a deadly cloud carrying a genetically engineered virus that turns people into flesh-eating zombies. Eighteen year old casey williams is determined to lead her friends to safety on...An explosion at the army depot unleashes a deadly cloud carrying a genetically engineered virus that turns people into flesh-eating zombies. Eighteen year old casey williams is determined to lead her friends to safety only to find out she's led them into even greater danger.