On Ham Farm, the remnants of the British Army watch as the massive horde approach in the distance. Joining forces with the Smith sisters they face a race against time to fortify the area before the dead attack. Vastly outnumbered, all they can do is pray their training and arsenal of weapons will see them through the coming battle. If they manage to repel the multitudes of rotting zombies, the real war is only just beginning. Inside the castle, the survivors start to take the safety of the impenetrable fortress for granted. Kurt and the family know what needs to be done to survive the zombie apocalypse, but a lazy clique begin to show their cowardice. Refusing to fight, forage or guard the walls, they skulk away and isolate themselves, weakening the defences further. With Craig planning terrible revenge, this selfish act could have deadly consequences for them all.