The present work is basically an authentic account of historical events in Iran and the inside story of the Shah's regime. It concentrates on the underlying consideration which paved the way for the rise to power of Reza Shah and the untold reasons for the collapse of the Pahlavi dynasty. It also gives an account of a movement which overthrew the Shah under the leadership of Ayatollah Khomeini. It also aims at providing a comprehensive and objective consideration of the major contemporary issues.