It's a fine line between safety and terror. Meet the rulers.
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.
Homepage http://www.bbc.co.uk/programmes/b006mf4b
Year2002
Number of episodes86
Number of seasons10
Episode run time60
Status:Ended
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GenresDramaAction & AdventureCrime
Production countriesUnited Kingdom
