After his father's ship is found shot to pieces and missing its cargo of gold, Capt. Johnny Angel sets out for revenge. To get to the bottom of the mystery, Johnny confronts his father's employer, Gusty, but gets stonewalled. Suspicious, he digs deeper and uncovers a hidden world of crime and conspiracy. A stowaway named Paulette Girard who was on board is key to discovering the truth -- if she can stay alive long enough to tell it.