I enjoy a good apocalypse film or series, but I often find that I get annoyed with the silly plots though and want to know much more about the practicalities. I started watching Lost, but quickly stopped when it turned out to not be about surviving a plane crash and all mystic woo. 28 weeks later annoyed me because they moved back to an urban area with no clear line of sight for zombie interlopers. It was also a time when there would still have been millions of dead to eat, so the rat population would have exploded and been there to spread the rage disease.
No one ever seems to worry about food security and start farming, they just assume that supermarkets will feed them forever. Even though a supermarket is probably the most dangerous place to go at the beginning of an apocalypse. I have never seen a movie apocalypse consider that people will release their dogs before they die and with no other apex predators (in UK), there would quickly be packs of feral dogs. Or the damage that deer would do without being culled.
Has anyone actually written a realistic apocalypse taking into account what would really happen? Obviously I am assuming that zombies, extinction level pandemics and killer robots are realistic here!