If they’re in a city, where everybody has changed to aggressive zombies. It’s caused by a parasite, experimented by a local pharmaceutical company. Supposedly everybody has this parasite in their body. what I don’t understand if you can’t get it from a bite or scratches how did all these people get it? Anyway, we’re following six or seven different groups of people trying to survive in the city. they’re trying to get out of the city., But of course the Military has it all blocked off. Overall, since I have Kindle unlimited, which I suggest everybody to get, the price of the audiobook is really good. So for the price, it has totally kept me entertained.. They’re short books so I don’t think I would’ve paid a full credit for a 4 1/2 hours. I have listened to a lot of zombie books and I have listened to a lot worse than this book so if you’re a zombie fanatic like me, I’d say go for it. Is keeping me in engaged, and it has an excellent narrator which for me is almost the most important.