Michael 'Mad Dog' Hertzog loved being a soldier. He loved putting his life on the line, feeling that adrenaline rush, traveling to new places, seeing the action. But he grew tired of the red tape of the Marines, the politics, and the danger of having to trust your life to intel developed by CIA spooks who might have hidden agendas. But when he finds a cache of gold and currency inside a cave in Afghanistan, he knows that he might be able to live his dream: being a solider, on his own terms. Concocting a scheme to get the money out of the country, Mad Dog forms his own private security firm. But 'private security' is really just a buzzword for what the company offers: mercenaries.Mad Dog assembles a dream-team of operators from across the military, hard men from the SEALs, Force Recon, the intelligence services, and some places even he can't identify. They are well-trained, elite, and extremely expensive. Mad Dog's trusted right hand Mr. Bibby vanishes, along with thirty million dollars of Mad Dog's money.
During Mad Dog's hunt for the man, he discovers a plot by the Russian mafia to trade stolen Siberian diamonds for three Russian nuclear warheads, which will in turn be sold to Hezbollah (who will then sell them to Iran) - and it seems Bibby is mixed up in all of this. Why did Bibby take the money? Is he a traitor? Who are the real players involved in all of this? Can Mad Dog rely upon the help of his old nemesis at the CIA, James Moody, when push comes to shove?