It's a fine line between safety and terror. Meet the rulers.
First Air Date: 2002-05-13
Rating:7.7 / 10(146 votes)
Status: Ended
Genres: Drama, Action & Adventure, Crime
Seasons: 10 · Episodes: 86
Runtime: 60 min / episode
Tense drama series about the different challenges faced by the British Security Service as they work against the clock to safeguard the nation. 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.
