As far as the espionage stuff goes, I had not a damned clue what was going on. I assume that after a few more episodes, puzzle pieces will start fitting together in a way that makes more sense to someone who is tuning into the show without the history of the first two seasons. I also assume that these spy games are secondary to the emotional cat-and-mouse being played here between the central characters, which I am already following with baited breath and engrossed glee.