But the Americans have a secret weapon in a group of Iranian dissidents, including a brother and sister determined to avenge the death of their beloved grandfather at the hands of the religious police. They are funneling information to Tommy Carmellini. They want to stop the attack before it launches a new world war. But will the U.S. government believe the information they are providing, and can the Americans prevent the Israelis from taking matters into their own hands, which could prove disastrous?