sentences:  The plot revolves around David Shirazi, a young CIA operative of Persian descent, who is assigned to stop Iran from developing nuclear power.The story starts in Iran in 1979 during the takeover of the American Embassy in Tehran.Charlie Harper, an American Foreign Service Officer who was outside the embassy during the takeover, and his wife Claire, seek the help of their neighbors, cardiologist Mohammad Shirazi and his wife Nasreen, a translator at the Canadian embassy to escape capture.