Ben Gannon is the best deep-sea recovery expert in the business. No salvage is too deep, no job too risky. But when Ben and his crew find several bodies-shot-in a helicopter wreck, the risk becomes more deadly than even the most hostile waters. Lured to an ultra-high-tech oil rig in the middle of the ocean, Gannon finds himself thrown into a deadly game of cat and mouse against a corps of trained killers. Trapped in the balance-the lives of everyone aboard the rig. With no hope of rescue, and nowhere to hide, Gannon must survive long enough to stop a murderous fanatic's devastating plans. And if he fails this time, there's no coming up for air.