The world, as we know it, is gone. And right now there are only two things I’m sure of: One, those things that invaded us have my sister. Two, I’m getting her back...or I’ll die trying. New York City is destroyed. Less than a month ago, Earth was attacked, invaded by strange beings focused on demolishing our world. When my sister and I venture out to find help, it happens right in front of my eyes. My twin sister is plucked up off the street by one of the flying creatures. And I am hellbent on getting her back.