I'm looking for the name of a story where the main character (possibly the only one) is watching news on TV with a nuclear conflict unraveling before his eyes. Oddly enough, hardly anyone notices as the explosions occur in some wastelands in Alaska and Siberia.
There was a Twilight Zone episode (called Shelter Skelter) where a divorced man, watching the news of nuclear escalation, freaks out when a explosion is heard and heads for his bunker.
It turns out it was limited to only his town, an accident however he thinks the world has ended and still lives in his bunker, unaware that life (and his ex-wife) are fine in the outside world.
Not a short story, but somewhat similar to the plot of Blast from the Past with Brandon Faser and Alicia Silverstone. Fun movie!