On the snow-covered slopes of Utah, the President of the United States is kidnapped and his Secret Service detail massacred. Only one agent survives-ex-Navy SEAL Scot Harvath. He doesn't believe the official line that Middle Eastern terrorists are behind the attack and begins his own campaign to find the truth and exact revenge.

But now, framed for murder, Harvath takes his fight to the towering mountains of Switzerland and joins forces with the beautiful Claudia Mueller of the Swiss Federal Attorney's Office. Together they must brave the subzero temperatures and overwhelming heights of treacherous Mount Pilatus-where their only chance for survival lies inside the den of the most lethal team of professional killers the world has ever known.