Mrs Harris, cheerful cockney charlady, had her first adventure to Paris, to buy her Dior frock.  She returned to England not only with a Dior frock, but with a wealth of new friends. Now she is off to the United States, with her faithful and timid friend Mrs. Violet Butterfield. The generous ladies have committed themselves to finding the real father of a maltreated waif. They meet all sorts of people; their mission creates untold diplomatic complications; and they find themselves in serious trouble but with stout allies by their side.