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.
Thou Shalt Not Kill
Looking After Our Own
One Last Dance
Traitor's Gate
The Rose Bed Memoirs
The Lesser of Two Evils
