Nations collapsed. The undead rose. Some people survived. Three months after escaping from London, Bill discovers the true extent of the global war that followed the outbreak. Most of the world has been destroyed, but there is a safe haven in a small village on the Irish coast. When he is told of the sanctuary awaiting them, he also discovers that the scientist who created the virus escaped from New York. In order for any of them to ever truly be safe, Bill will have to head north to confront the man, discover the truth behind the outbreak and finally choose between his old family and his new one.