Series 8, Episode 4 (Spooks)

The fourth episode of series eight of the British espionage television series Spooks is the 69th episode in the overall series. It was originally broadcast on BBC Three on 20 November 2009, later repeated on BBC One on 25 November. The episode was written by David Farr, and directed by Sam Miller. In the episode one of Lucas North's (Richard Armitage) former interrogators, FSB officer Oleg Darshavin (Emil Hostina), approaches Lucas regarding an upcoming terrorist attack. The episode also continues the story-arc of "Nightingale", a shadow organisation bent on a New World Order, and reveals that CIA liaison Sarah Caufield is a part of it. A little over five million people tuned in to watch the episode following its BBC One broadcast. It was met with generally positive reviews.