If you don't mind subtitles (or indeed, if you speak German), there are a couple of great recent series from our European friends.
Deutschland 83 - Cold war thriller from the East German perspective following a young recruit sent to spy on the West. It's on All 4 along with the sequel (which I've not watched yet)
Babylon Berlin - Set between the two world wars, super twisty political thriller following a detective uncovering all sorts of murky goings on. They're up to two seasons on this one as well, both on NowTV.