An Air Force washout and his buddy room with a pretty young lady. Desperate for jobs during the Depression, they finally land employment with the mob.

After burning Rome, Emperor Nero decides to blame the Christians, and issues the edict that they are all to be caught and sent to the arena. Two old Christians are caught, and about to be hauled off, when Marcus, the highest military official in Rome, comes upon them. When he sees their stepdaughter Mercia, he instantly falls in love with her and frees them. Marcus pursues Mercia, which gets him into trouble with Emperor (for being easy on Christians) and with the Empress, who loves him and is jealous.

The Lady cop Florence Vinton goes undercover to get the goods on rival gangsters Eddie Swan and Larry Marsh. Just at the point in which Florence looks like she's going to be rubbed out, Swan and Marsh shoot each other down.