 An attack on an Islamic dissident author in his friend s bookstore puts MI-5 on the trail of international terror groups. Danny is assigned to protect the bookseller as Adam thinks he may still be a target. MI-6 isn t being of help and to the point of Adam having to stage an elaborate, hours-long shake of many tails in order to meet with a very highly placed source. In the post 9-11 world, no one is off limits, sides change quickly - and the team certainly isn t being told everything.