Opening scene is a little laborious, but it does quickly define the story of the 'down and out' spy team and River's (Jack Lowden) place in it. Intrigued to learn more background on Lamb (Gary Oldman) there is clearly more to him than a broken/disgraced spy. Have watched the first two episodes, it is enjoyable and the ending to episode 2 provides a 'Skinner response' hook into 3.