Sadie Walker fights for survival as the dead close in...In the months since The Outbreak, Seattle has become a walled fortress - the Infected are kept at bay, and the survivors are trying to scrape back a life. But the city is rife with crime, religious cults and black-market dealings. And things are about to get much, much worse.When a group of frustrated fanatics, the 'Repopulationists', destroy part of the wall, zombies start swarming the city. Sadie, devastated by the brutal kidnapping of her young nephew, must find him and get them both out before it's too late. But the only escape is by sea, and she's seen for herself the horrible fate of those who tried that route before...