Set in Manchester, UK, the apocalypse began in 2019, throwing the city and the world into chaos. For a while people were instructed to stay in doors, but as time passed on people were ushered into quarantine zones. Twenty years later, most of those zones have fallen. The TV cameras and live feeds have stopped rolling. Most people are just barely surviving, unknown what is happening and why. Damon, former cop, is wanting to seek out answers, as the new world starts to unravel around him and the other survivors.