The Cold War heats up when a KGB defector exposes Operation Glass, a potentially devastating Soviet plot to activateer agents across the UK. How to stop it? The charismatic but paranoid head of MI-5 - known simply as "Daddy" - assembles a secret committee of spies and intelligence officers to investigate. They're the only colleagues he trusts in a world of double agents and lies, but has he chosen well? Brian Cox (Troy, The Bourne Supremacy) and Tom Hughes (Dancing on the Edge, The Lady Vanishes) lead the all-star cast of this stylish spy thriller, guaranteed to keeps you in suspense.