When MI5 office Liz Carlyle arrives in Belfast, danger immediately follows – she quickly learns that the peace process in the province is precarious.
Liz suspects The Fraternity to be a front for renegade IRA men. Also it looks as though a plot is being hatched against the security forces. Liz and her colleague dave armstrong believe that a former French Intelligent officer in involved. But during their investigations, Dave goes missing. Liz fears the worst, especially when she discovers hat the obvious suspects have all disappeared.