His native Scotland stands on the cusp of a new era of international expansion under its charismatic new leader, but former top cop Sir Robert Skinner is settled happily in Spain with his family, fully engaged in a new and unexpected career. He is focused on a business issue, only to be drawn suddenly homewards as a family member finds himself a witness to a homicidal attack, and under fire himself. Skinner drops everything to rush to his stricken son's aid. Pulled back into his old world he finds himself facing the aftermath of a shocking crime only to see it evolve into a mystery as great as any he has ever faced.