[2][3] The Fear takes place in London, a year after a worldwide sickness has infected adults, turning them into something akin to voracious, cannibalistic zombies.
A prologue introduces a new zombie called "The Collector", a massive father who collects "toys" (kids), plays with them until they break (tortures them until they die), and eats them.
The real story begins at the Tower, where DogNut is growing restless of his confinement and is annoyed that he has been kicked from second in command by Ed.
He plans on heading out to find Brooke and the others from the Tesco truck, whom they lost contact with during the fire of South London and the Battle of Lambeth Bridge.
After a quick but difficult row upriver, they end up at the Houses of Parliament, where they find a girl named Nicola and her group.
The group later arrives at the Natural History Museum where they find Brooke and the others, and meet Robbie (their Head of Security), Justin (the leader), and Paul (Olivia's brother).
He shows DogNut the experiments to find a cure - which included taking samples from three zombies they've locked up in the Tesco lorry.
Justin tells DogNut about the large number of zombies in the museum's basement, where the group obtains their test subjects.
David proposes that the two groups form an alliance - a step toward implementing his maniacal plan to take over the entirety of London.
Nicola is reluctant but ends up creating a deal that involves removing the 'squatters' at St James's Park, as they pose a threat to her group at the House of Parliament.
Finally, in a latch ditch effort, Shadowman kills the grownup using a steel rod he finds in a pile of scrap metal.
Shadowman awakens and finds himself at the Emirates Stadium, being watched by Saint George's "Lieutenants" (who he nicknames Spike, Man-U, One-Armed Bandit, and Bluetooth).
Dozing off to sleep, Shadowman is suddenly awakened by a group of zombies that have found his hiding spot, including One-Armed Bandit.
DogNut, Courtney, Marco, and Felix are all killed whilst Jackson escapes with a wounded Robbie, and Brooke is saved by the Holloway kids (as described in The Enemy).
He meets with David and Jester, who take advantage of his mental state and tell him a fake story that everyone at the museum was plotting against him.
This causes Paul to want to take revenge on everyone who believes he killed Olivia, and David convinces him to return to the museum and release all the zombies who are in the basement.
Whilst Brooke and the Holloway children escape the palace (As shown in "The Enemy"), Paul kills a boy named Jamie and releases the zombies underneath the museum (revealing that he has been infected by a zombie bite all along), and Shadowman watches as Saint George's army kills Callum, burns Waitrose to the ground and marches on to the heart of the city (as seen in "The Enemy"), finally deciding to name them "The Fear".