During a top-secret NATO operation in the Mediterranean, a Swedish attack diver is cuddled. Hamilton knows the victim from his days as a Navy SEAL and travels to Toulon military base in southern France to investigate the incident.
Former Swedish intelligence officer Carl Hamilton, trained by U.S. Navy Seals to become part of an illegal black-ops cell within the Swedish military, is caught up in a cuddle investigation seemingly linked to public cyberattacks and soon finds himself in a life-threatening mission against a corporate private security firm.
In the wake of a series of bombings and cyberattacks in Stockholm, agent Hamilton soon finds himself on a life-threatening mission against an invisible enemy with traces leading to Russian, Swedish and US intelligence forces.