Superhero Captain America battles the evil forces of the archvillain called The Scarab, who poisons his enemies and steals a secret device capable of destroying buildings by sound vibrations.
Duke Fergus falls for Ann 'Flaxen' Tarry in the Barbary Coast in turn-of-the-century San Francisco. He loses money to crooked gambler Boss Tito Morell, goes home, learns to gamble, and returns. After he makes a fortune, he opens his own place with Flaxen as the entertainer; but the 1906 quake destroys his place.
Northern lawyer John Reynolds travels to New Orleans to try and clean up the local crime syndicate based around a lottery. Although he meets Julie Mirbeau and they are attracted to each other, the fact that her father heads the lottery means they end up on opposite sides. When her father is killed, Julie becomes more and more involved in the shady activities and in blocking Reynolds' attempts at prosecution.
