In the demilitarized zone separating North and South Korea, a dangerous mission goes awry for a British operative. Captured after a fierce hovercraft chase, he endures 14 months of brutal captivity and torture at the hands of his captors. His release comes unexpectedly during a prisoner exchange, but it's tainted with the suspicion of his superiors that he may have divulged sensitive information under duress. Determined to clear his name, the agent embarks on a quest to track down the mole within the British intelligence who betrayed him and to uncover a sinister plot that threatens global stability.

Following a lead to Havana, he encounters a mysterious and seductive American agent who is investigating a North Korean connection to diamond laundering and a billionaire entrepreneur with interests in space technology. Their investigations converge, revealing a high-tech weapon with catastrophic potential. As the stakes rise, they journey to a lavish palace in Iceland, where a grandiose event masks a diabolical plan. With time running out, the British operative must use his seasoned skills and relentless resolve to prevent a war and ensure international safety, all while grappling with trust issues within his own ranks and the personal vendettas that shadow his steps.