We earn a commission for products purchased through some links in this article. Line of Duty's Kate-Jo relationship wasn't quite queerbaiting, but still missed the mark Whether you're team 'Flemson' or not. 05/05/2021 Line of Duty has been one hell of a ride. Whether you loved the finale or hated it – or, somewhat remarkably, were ambivalent about it – it's hard to deny that the show created a kind of nationwide furore where had we all been in offices with water coolers, it would have been the only thing people were talking about. Line of Duty took place at the universal water cooler – Twitter. Everything that had happened in all five series and six episodes leading up to the finale was sort of erased from our collective consciousness when the big H/Fourth Man reveals happened.