A terrible disease is striking everyone over the age of fourteen. Death walks the streets. Nowhere is safe.

Jack and Ed are best friends, but their battle to stay alive tests their friendship to the limit as they go on the run with a mismatched group of other kids – nerds, fighters, misfits. And one adult. Greg, a butcher, who claims he’s immune to the disease.

They must work together if they want to make it in this terrifying new world. But as a fresh disaster threatens to overwhelm London, they realize they won’t all survive...