For over four decades the story of the extraordinary evil that occurred at the Kincora Boys' Home in East Belfast in the 1970s and the shocking attempts by MI5 to cover it up have haunted our political and social terrain for decades. Award-winning former BBC journalist Chris Moore has been working on the story since it first emerged in 1980, and has uncovered a horrific catalogue of failed opportunities to put an end to the sadistic activities of the men who were running the home, in particular those of prominent Orangeman and MI5 source William McGrath. What has emerged over the course of Moore's investigation, in which he has gained exclusive access to witnesses, secret documents and whistleblowers within the British intelligence services, is that not only were the boys in Kincora systematically sexually abused, but that some were forced into a countrywide paedophile ring, whose members included Lord Louis Mountbatten. Moore also exposes MI5's attempts to cover up what actually happened and that the organisation knew as early as the 1970s that the boys in Kincora were being abused. This is an exposé of how the British state failed to protect some of its most vulnerable members.