An explosive exposé of how British military intelligence really works. This book presents the stories of two British agents, each working undercover on opposite sides of a violent conflict: Brian Nelson, who worked for the Force Research Unit (FRU), aiding loyalist terrorists and murderers in their bloody work; and the man known as Stakeknife, deputy head of the IRA's infamous "Nutting Squad," the internal security force that tortured and killed suspected informers.

Stakeknife has seen sales of over 16,000 in the UK and Ireland.