At age 10, Rebecca is sent to the village of Riverboro to live with her two aunts, strict Aunt Miranda, and soft-hearted Aunt Jane, in order to learn to be responsible and a lady. In her long carriage trip from Sunnybrook Farm to Riverboro, Rebecca meets the good Mr. Cobb, the carriage-driver and soon become friends. As Rebecca begins the process of growing up in a new place, young and old friends help her to accept new responsibilities in this coming of age story.