Roman centurion Marcian is captured by Attila the Hun en route to Constantinople, but escapes. On arrival, he finds the eastern Roman emperor Theodosius plotting with Attila to look the other way while the latter marches against Rome. But Marcian gains the favor of Pulcheria, lovely sister of Theodosius, who favors a united Empire. As Attila marches, things look bleak for the weakened imperial forces. But the conqueror has an awe of the power of the Christians' God...

After making his historic crossing of the Alps with elephants transporting supplies and troops, Hannibal marches on Rome in a war of revenge. During his advance, he captures Sylvia, the niece of Roman Senator Fabius Maximus but, instead of holding her prisoner, he shows her his powerful army and herds of elephants, then sets her free. He is sure she will report what she has seen to his Roman enemies. Hannibal defeats the Romans at the battle of Trebbia and sends a message to Sylvia that he is marching on Rome. Sylvia succumbs to her love of Hannibal and they have a rendezvous, but are surprised by a Roman patrol. Hannibal escapes and Sylvia is confined to the temple of the Vesta Goddess. She escapes and meets Hannibal again. Hannibal orders his brother Hasdrubal to Carthage to take over command of the reinforcements preparing to join Hannibal. Hannibals wife Danila arrives from Carthage unexpectedly and Sylvia runs away and returns to Rome...

When the Romans under General Pompey conquer Judea in 63 BC, an era of despair and fear begins for the Jewish people. In the trials and persecutions that the Jews suffer under the Romans and under King Herod, they take hope in the promise that the Messiah someday would come. In the reign of Augustus, when Jesus is born in Bethlehem to Mary and Joseph, there are some who recognize him as the future king of the Jews. Later, when Jesus reaches adulthood and begins to appear in public, there are many different responses to his message, and there are also those who wish to use him for their own purposes.