A flight explodes in mid-air during take off near Washington DC. Later that day, as a shocked capital struggles to come to terms with the disaster, a diplomatic catastrophe envelops the British Embassy. A cat's cradle of tangled affinities and conflicting interests told through interlinking stories unfold as British Ambassador Mark Brydon slowly realises that he is being played by an invisible puppeteer with great power. If you can ignore the unlikely prospect of Her Majesty's representative thinking he's out of the Bourne Conspiracy, the rather unnecessary half-baked enigmatic clues for the viewer to make the plot seem more complicated than it is and the unnecessarily dragged out prison saga in the third episode, then this is a cracking action thriller.