Doctor Bamford has had enough of village life and is desperate for some distance from inquisitive Cornish neighbours. When the local estate agent shows him Tregunnt Farm # derelict and miles from anywhere # it's love at first sight. But the Bowden family from London also have their eye on the property with a view to developing the surrounding land into ugly holiday cottages. After being gazumped, the Doc decides to try and spook the family into leaving by pretending to be the Beast of Bodmin.

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.