First the bad news. Forty years ago a comet crashed into Earth wiping out 99% of humanity – and turning the Korean peninsula into a desert. Did Kim Jong-un and your favourite K-pop heroes survive? We have no information at this time.
The air is so toxic that humans wear oxygen masks outdoors, even former followers of Piers Corbyn. Our hero, a courier called 5-8 (played by ex-runway model Kim Woo-bin) delivers oxygen and food to survivors holed up in grim concrete new-builds, which are constructed on a grid plan resembling Milton Keynes – minus the charm and roundabouts. In order to get signatures for parcels, 5-8 must go through detoxifying air locks at each property, demonstrating a dedication unmatched by DPD or Amazon Prime in my experience.