Frank Graham, rich mine owner, is fatally injured by an explosion. On his death bed he confides to his friend, Jim Blake, all his plans concerning his daughter, Angela's, future. He makes him promise to watch over her. His fortune he places in the hands of his brother, a New York banker, to be held in trust for his daughter until her wedding day; the fact of her being an heiress to be kept secret in order to insure her safety from fortune-hunters. Angela comes east to live with her brother's family. She is treated as a servant, her cousin, Honora, doing all she can to make her life wretched. Graham permits this, not knowing that Blake shares the secret. He has decided to keep the money for himself. Honora has been betrothed to Jack Falkner, son of her father's friend, an arrangement of the parents. They have not met for years. Jack, desiring to study the real character of the girl, secures the position of chauffeur. His eyes are opened to Honora's despicable character. He falls deeply in love with Angela. He asks her to marry him. Graham, anxious to rid himself of the girl, gladly consents. Angela telegraphs to her father's friend, Jim Blake, of her approaching marriage. He comes east. Jack's identity is disclosed at the service to the chagrin of the Graham family. Jim Blake has a private interview with the banker, and forces him to make restitution.