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...

Nightclub singer Larry Todd breaks off his romance with a beautiful showgirl when he realizes she's the girlfriend of a murderously jealous gangster. While on the run, Larry mistakenly believes he kills one of the mobsters and is helped to escape police by heiress Mary Carol, who smuggles Larry and partner Myron to Cuba. Mary has inherited a haunted castle on an isolated island and, ignoring ominous warnings and threats, decides to take possession. While there, the trio hunt for a hidden treasure and encounter a ghost, a zombie, and a mysterious killer.

Charles returns to Paris to reminisce about the life he led in Paris after it was liberated. He worked...