Daniel Walker survived the horrific outbreak. Now, he is being called back out for more.

Ten days after the tragic assault on their shelter, Daniel and his fractured family are desperately trying to heal. But their fragile peace is shattered when a gruesome wheel of corpses arrives at their gates. Dragged back into the dangerous Scottish wasteland by the fanatical blood-cult known as the O-Saints, Daniel quickly discovers that the rules of the apocalypse have already changed.

The mindless hordes of 'The Lost' are no longer the only threats to their survival. Shadowy helicopters stalk the skies, dropping a new breed of monstrosity that is specifically designed to hunt them down. Trapped between underground gangs, vengeful cultists and the terrifying reach of a global shadowy organisation, Daniel must shed his remaining innocence to lead his friends into an impossible war.

Will Daniel become the ruthless protector that his group needs to survive? Or will the deadly ruins of his homeland finally tear his shattered family apart?