The story kicks off on Hartcliffe council estate in Bristol during the early 1980s. It follows Steven Knight, a working-class boy who has his motorbike stolen the day he buys it. Teaming up with his scoundrel friends he desperately tries to track it down before it's gone for good.

Survival is all that matters to Abigail, even if this means living her life in isolation. However, after meeting Bailey, she soon learns that even in the apocalypse, there still might be some hope for her.