In the fictional small town of Avonlea, Prince Edward Island, in the early 20th century, 10-year-old Montreal heiress Sara Stanley is sent by her wealthy father to live with her two maiden aunts, Hetty and Olivia King, to be near her late mother's side of the family.

In the fictional small town of Avonlea, Prince Edward Island, in the early 20th century, 10-year-old Montreal heiress Sara Stanley is sent by her wealthy father to live with her two maiden aunts, Hetty and Olivia King, to be near her late mother's side of the family.