It's amidst the frozen forests of Germany that we meet Caesar Marcus Aurelius (Alec Guinness) who is pondering a crucial question. He is ailing, aware that he'll be with his gods soon and that his son "Commodus" (Christopher Plummer) should not be entrusted with the empire. That honour ought to go to his childhood friend, and the emperor's commander "Livius" (Stephen Boyd). When he announces this, it leaves the honourable general with a conundrum - not helped by his love for the princess "Lucilla" (Sophia Loren). Thanks to an apple and a very dodgy paring knife, things come to an head and what... Lue kokonaan.