In Hong Kong, William Neal helps Kirk Marden fight off a group of rowdies. Back in New York, Kirk again turns to William's assistance when his father's rivals plot to take control of the Marden railroad. William teaches Kirk how to open safes so that Kirk can procure papers outlining the takeover plans. While Kirk is robbing the safe, Janet Leslie, daughter of one of the conspirators, enters, and Kirk forces her to marry him so that she cannot testify against him. Kirk succeeds in reconciling his father with his rivals and in winning his new wife's love.