WARNING, THIS DRAMA IS DEPRESSING.
But if you want to see a realistic drama about the reality of a nuclear attack, watch the classic and critically acclaimed BBC 80s drama called "threads". About a war starting in the middle east, turning nuclear and a bomb going off near Sheffield.
It is online
A friend of mine is an economics genius. Exceptionally well read. Besides the obvious things like firearms, water, tinned food. He suggested 9 acres of land per person, elevated location, fortified walls, gold (easy to hide, even intenally if required) and surprisingly, vast quantities of nicotine/ cigarettes. Cigarettes are traded in prison for example and there are folk who would rather let themselves and their families starve in order to score nicotine