In his second mission for the National Intelligence Marine Squad, former marine commando Art Marvik finds himself on the trail of a 50-year-old mystery. For his second mission, Marvik is detailed to attend the funeral of Bradley Pulford, whose body was washed up on an Isle of Wight beach in January – only he'd officially been declared dead 55 years earlier. So who is the imposter and why did he assume the name of a dead man? What's more, why did he suddenly show up in the Dorset coastal town of Swanage in 1989, hook up with a local fishing family, the Killbecks, and after fathering a child with Stacey Killbeck, disappear in 1990? When an innocent woman is killed during the course of the investigation, Marvik realizes that the stakes are much higher than he'd previously thought. As he begins to uncover a trail of deceit, corruption and murder that spans over half a century, Marvik must confront a ruthless killer who will stop at nothing to make sure that the sins of the past stay in the past.