Luke and Alex have only days to stop the plague. But for the rest of the crew, it's already here. Can Bayleigh and Layla survive the horror that has beset them? Will Jackson prove himself worthy of God's love? Will Krystal and Ed make it across town and meet up with the others? Will Dave ever stop running?

Luke has a choice to make. With every day that passes, he’s becoming more human. He cares more and more about the people around him. But he can’t shake the belief that Az and Seph have got it right. The plan is simple. Kill the Father, rule the Flights, rule everything. So why is he hesitating? Maybe it’s because of Bayleigh. There’s something about her he can’t ignore, not even when he thinks about Sara. Maybe it’s because of Jackson who, despite being utterly bonkers, is sticking to his misguided beliefs in the face of overwhelming adversity. Maybe it’s because of Krystal. Luke would never use the word daughter, not unless he was sneering at the time, but he can’t deny his pride in her. Maybe it’s because of Alex. The scientist can’t shake his guilt over creating the plague, but he’s still trying to make a difference. Or maybe it’s because of Dave. Because there’s nothing like complete insanity staring you in the face to make you think twice about killing your own father. As Luke and Krystal cross London in search of food, the others are dealing with a murder in the hospital. Jackson, meanwhile, has his own agenda. Except it’s not his agenda. It’s God’s agenda.

Two months have passed. The ladies and five of the seven are out in the peace of the countryside, soaking up the last of the autumn sunshine and finding something close to contentment. Except for Bayleigh. She’s bored out of her mind and knows they can’t sit on their arses forever. Then there’s Luke. Two months of sitting around and he still doesn’t have a clue what to do. And now he’s avoiding Bayleigh, instead of doing what he would have done before the Father took his balls away. Jackson is preparing to hunt. He’s spoken to God and knows his mission. The path before him is clear. He is God’s will on Earth. Blah blah bla--, oh no, hang on a second. There’s something else waiting for Jackson, something quite wonderful. Dave is mad. Not just a little bit bonkers. He’s several waves, in fact, he’s pretty much a sea short of a shipwreck. But that’s okay, because he’s got cereals, and the rats, and someone to blame. And Alex? Well, he’s got his end away, so that’s something. Two months have passed, but the future is closing in. The end game is coming, and it’s not just Luke who has to choose a side.

St Paul’s Cathedral is filled with attractive young blond women. In gas masks. The plague will soon have run its course, leaving the world filled with zombies and the crew neck deep in shit. And attractive young blond women in need of rescue. But first, Luke and the others have to escape from St Paul’s. The soldiers of God have other plans, and they aren’t the only ones. Some old friends of Luke’s are about to turn up and offer him a proposition he might not be able to refuse. Even if they do escape, they know they have to go back in one more time. After all, attractive blond women in need of rescue… But who will go in, and who will come out? And it’s not all about Luke. Bayleigh has dreams of making something worthwhile in the new world, whilst David has dreams of murder. Krystal’s already living her dream, in a world where everyone’s homeless. Alex is a believer, in a new world filled with cynics. And Jackson? Jackson doesn’t need dreams. He’s got God.