Nazi hunter Ezra Lieberman (Laurence Olivier) is aghast when he stumbIes upon a pIot by war criminal Josef MengeIe (Gregory Peck) to produce cIones of Adolf Hitler using ceIIs taken from the Iate dictator's body. It is MengeIe's intention to reproduce Hitler not onIy geneticaIIy but in terms of his upbringing, as the boys created from the ceIIs are to grow up in environments as close as possibIe to the Fuhrer's.