Book 1 of the Zombie Apocalypse
A virus has inadvertently escaped from the Centers for Disease Control and Prevention (CDC) in Atlanta, USA.
Patient Zero is a recently retired US scientist on board a plane bound for London Heathrow when he 'turns' during the flight, infecting most of the passengers and crew.
Chaos ensues, but the remaining cabin crew manage to contain the situation long enough to allow the pilot to land the plane safely.
The Security Services on the ground are sceptical about the Mayday call received from the plane, and although they take some precautions, they believe they are dealing with a hi-jack situation and are wholly unprepared for what is about to hit them. Zombies swamp the airport, although many of the injured manage to escape through the various transport networks, spreading the virus rapidly throughout London and nearby towns and cities.
The story follows the first three days of the zombie outbreak and the survivors' attempts to contain the threat, stay alive and fight back