Dylan Costello, a former undercover agent for a secret peacekeeping society in Northern Ireland, thought he had left his dangerous past behind. Now working for a powerful man with mysteriousmotives, Costello seeks a new life away from the shadows. But when his old mentor, DiggerMorley, is kidnapped by an enigmatic figure with even darker ambitions, Costello is thrust back intoa world of betrayal, secrets, and power struggles. As the story unfolds across two timelines, Costellomust confront his past while racing against time in the present to stop a madman and save thementor who once saved him. Will Costello's skills and haunted memories be enough to prevent acatastrophe, or is the past destined to repeat itself ?