Synopsis and details
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.
Seasons and episodes
Series 1
6 Episodes · 2002-05-13
Series 2
10 Episodes · 2003-06-02
Series 3
10 Episodes · 2004-10-11
Series 4
10 Episodes · 2005-09-12
Series 5
10 Episodes · 2006-09-17
Series 6
10 Episodes · 2007-10-16
Cast
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