After his father's death, Charles de la Fontaine, the Marquis d'Aubeterre, learns that the family is penniless and journeys to America to earn a living for himself and his sister Helen. The Countess d'Este secures him a position in the home of Lathrop, a millionaire, and the young nobleman instantly falls in love with Lathrop's pretty daughter Marian. Supposing that Charles is after her fortune, Marian avoids him and becomes engaged to the wealthy Rudolph Miller. Charles changes her opinion of him, however, when he and Marian are locked in an old tower, and, after swearing that he will only marry her when the two are equally wealthy, he makes a daring escape. Unknown to the Lathrops, Charles backs Marian's brother Frank in a financial venture, as a result of which the two young men become rich. Marian discovers that Rudolph is unfaithful, and with the "golden wall" of wealth that had separated them now obliterated, she and Charles wed.