By Paul Speed Netflix subscribers are falling over themselves to praise an ‘underrated’ apocalyptic series they’re binge-watching in a single day. With the sheer deluge of films and TV shows available on the world’s most popular streaming platform, deciding what to watch can often present quite a challenge. Thank goodness, then, for communities such as Facebook’s ‘Netflix Bangers’ which showcases what other subscribers are enjoying. And its members are currently buzzing over a series that has been around for some time now – ‘The Rain’. Set against an apocalyptic backdrop, this neat 20-part thr…