Spooks (known as MI-5 in some countries) is a British television spy drama series that originally aired on BBC One from 13 May 2002 to 23 October 2011, consisting of 10 series. The title is a popular colloquialism for spies, and the series follows the work of a group of MI5 officers based at the service's Thames House headquarters, in a highly secure suite of offices known as The Grid. It is notable for various stylistic touches, and its use of popular guest actors. In the United States, the show is broadcast under the title MI-5. In Canada, the programme originally aired as MI-5 but now airs on BBC Canada as Spooks.
The show consists of 86 episodes, beginning in May 2002 and ending in October 2011. Each episode ends with the final scene freezing and changing to a black-and-white negative image that then compresses with a distinctive sound effect into a flat white line against a black screen