How do you go on living when you've lost everything?How do you keep on going when there is no place to go?When salesman Nick Adams turned up for work today, he had no idea things would be so quiet. It's almost like the end of the world. In fact, just one single, solitary customer has walked through the door all day...And he looks very, very sick.Nick's world is about to turn upside down, and the upcoming horror will send him on a frantic journey from the place he used to call home to a hilltop amusement park that might be the only safe place left on earth. But Nick isn't alone-there are others with him-and as the tension builds tempers will begin to fray. They are only human after all...The survivors at the top of the hill might just be worse than the monsters below.