In the wake of his girlfriend's brutal murder by an assassin who is in possession of a strange radioactive isotope, covert counter-terrorism agent Scot Harvath discovers clues to a conspiracy with presidential ties that puts him at odds with his own agency.

"For Detective Bunny McGarry, life is complicated, and it is about to get more so. It's 1999 and his hard won reputation amongst Dublin's criminal fraternity, for being a massive pain the backside, is unfortunately shared by his bosses. His partner has a career-threatening gambling problem and, oh yeah, Bunny's finally been given a crack at the big time. He's set the task of bringing down the most skilled and ruthless armed robbery gang in Irish history....

"As a wise man once said, just because you're done with the past, doesn't mean the past is done with you. Paul can't let an incident from his past go. When he finds out a rival detective agency played a key role in it, he drags MCM Investigations into a blood feud that they can't hope to win. Soon they're faced with the prospect of the company going out of business and Brigit going out of her damn mind. When long-buried bodies are discovered in the...