A TRAIN hurtling through the dark towards London, unsuspecting passengers oblivious to the threat in their midst. Buckle up and grab the popcorn tin, there’s a new Jed Mercurio drama in town. . http://www.heraldscotland.com/news/16596874.richard-madden-on-new-bbc-drama-bodyguard-and-avoiding-game-of-thrones-spoilers/