Nuclear Fallout

WWlll began and the world went to war, nuckear weapons were used and it led to people having to live in bunkers because of the radiation, the world then went into chaos as most life died, but many creatures, plants, and people adapted to the radiation, transforming them into new kinds of species, eventually most radiation on earth passed, and humanity had the courage to come out of their bunkers and see the mess that was left, but humanity thrived and made new communities, clans, and tribes, you wake up in your bunker, you still don't know that the air outside is breathable