When the Good Friday Agreement was drawn up in 1998 nearly 100 terrorists had their past 'cleansed', but not everyone received a 'comfort letter'. Some former IRA members had been hung out to dry, and they had to resort to a life of crime to make ends meet.
But the past has a habit of catching up with people, and when an IRA fugitive decides to become an MI5 Supergrass, shockwaves reverberate throughout the underworld he is a part of.
Ghosts from his past come back to haunt him, and many people now want him dead. So, Daniel Grant, the newly appointed Director General of the British Secret Service, puts him in a safe house with a difference.
Shady Fields is a retirement home for ex Secret Agents, but don't let that fool you. They can still call on their expertise when the safety of their home is threatened.