During a raid on a gambling establishment run by her father, Cosmo Lester, Diana Lester rescues Hugh Carton, a member of the English Parliament and a candidate for the Cabinet. Hugh gratefully offers Diana a position as his sister's companion, and soon, the two fall desperately in love.

Heading to America after finding themselves destitute following their father's death, Charles de la Fontaine, the Marquis d'Aubeterre and his sister Helen secures a position in the home of Lathrop, a millionaire thanks to the Countess d'Este. He instantly falls in love with Lathrop's pretty daughter Marian, but she fears he is a fortune hunter and becomes engaged to the wealthy Rudolph Miller. Charles tells her he would only marry her when the two are equally wealthy. Charles then secretly backs Marian's brother Frank in a successful financial venture, making both rich. Discovering Rudolph is unfaithful and with the "golden wall" of wealth that had separated them now obliterated, Marian and Charles wed.

A thief known as The Hawk has stolen the treasured Garter from the British Museum. One of the men pursuing the thief is mistakenly thought to be The Hawk himself, and so must seek his quarry while himself being hunted.