As the world is terrorized by the dead coming back to life, people band together to survive. A group of Youtubers, including Lilly Singh (iisuperwomanii), Ryan Higa (NigaHiga), Ian Hecox and Anthony Padilla (Smosh), Joe Sugg (Thatcherjoe), Zoe Sugg (Zoella), Alfie Deyes (Pointlessblog), Caspar Lee, Dan Howell (Danisnotonfire), and Phil Lester (Amazingphil), join with Ashley Landon in the battle for survival. Who will live? Who will die? Who will turn? And will they find a cure before it's too late?