In the wake of a devastating disease, everyone sixteen and older is either dead or a decomposing, brainless creature with a ravenous appetite for flesh. Teens have barricaded themselves in buildings throughout London and venture outside only when they need to scavenge for food.
The Holloway crew, having made it to the Natural History Museum barely alive, continues to seek a cure for the Disease but when the children return to the streets for medical supplies, it is no longer clear who--or what--is their enemy.
After an epidemic strikes everyone sixteen and older, its victims become zombies who track the surviving children in pursuit of young flesh. One year later, survivors DogNut and his crew set off on a journey to find their long-lost friends and must fight for their lives against the sickos every step of the way.