After a roustabout sailer avoids being shanghaied in 1852 San Francisco, his audacity helps him to arise to a position of power in the vice industry of the infamous Barbary Coast.Bat Morgan is nearly shanghaied on his way to the gold fields of California. Instead he kills Shanghai Duck and becomes a hero in San Francisco's Barbary Coast. He winds up the rich owner of a saloon and gambling hall and is nearly lynched for a murder he didn't commit.