Gerry O'Hanlon worked for British intelligence inside the IRA for 30 years, throughout which he provided Britain with information. This book describes the events of those years and the often intolerable pressure under which O'Hanlon operated.

Gerry O'Hanlon worked for British intelligence inside the IRA for 30 years, throughout which he provided Britain with information. This book describes the events of those years and the often intolerable pressure under which O'Hanlon operated. He was responsible for the capture and imprisonment of numerous IRA and Provisional IRA terrorists and supplied information about the Balcombe Street gang.