In Baghdad's Green Zone, an Iraqi scientist is murdered just before he is to reveal the monstrous secret that Saddam Hussein took to his grave: the Palace of Death, home to a chemical weapon that Islamic militants quietly have been developing and whose formula is nearly complete. The assassination is the work of a mysterious sniper called Juba, who was originally trained by the British but now works with a twisted mastermind determined to wrest leadership of the terrorist world from Al Qaeda.
Kyle Swanson, once the top sniper in the Marine Corps, has become the key member in a secret special operations team known as Task Force Trident. When Juba tests the new weapon by killing hundreds of people at a British royal wedding in London, Swanson is assigned to hunt down his old special ops rival. The birth of a new reign of global terror can be stopped only by a confrontation between the two best snipers in the world, a duel in which the first shot wins. Usually.