The world is on the brink of disaster. Iran has just conducted its first atomic weapons test. Millions of Muslims around the world are convinced their messiah, known as the Twelfth Imam, has arrived on earth. With the stakes high and few viable options left, the president of the United States orders CIA operative David Shirazi and his team to track down and sabotage Iran's nuclear warheads before Iran or Israel can launch a devastating first strike. But will they be too late?