Recently promoted to Detective Inspector in the city’s Major Crime Unit, Lynn’s rescue of a badly-beaten fifteen-year old from eastern Europe links her to an international investigation into people trafficking and gun smuggling, and teams her up with SOCA — the Serious and Organized Crime Agency — for the first time. Just when everything seems to be progressing smoothly, things start to go wrong, leaving Lynn with serious doubts about the integrity of the SOCA officers in charge. And when DI Charlie Resnick rouses himself from near-retirement to lend a hand, he finds he’s blocked at every turn.