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.
Peter Firth | Harry Pearce | |
Nicola Walker | Ruth Evershed | |
Max Brown | Dimitri Levendis | |
Lara Pulver | Erin Watts | |
William Hope | Jim Coaver | |
Alex Lanipekun | Ben Kaplan |
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