A family history transmitted through the generations culminates with the discovery of the illegitimate daughter of one of the greatest heroes of Chilean independence, Bernardo O'Higgins Riquelme. Through the story of Petronila Riquelme, various previously unknown aspects of O'Higgins' life are revealed and a search begins in Chile and Peru for the remaining traces of this story; A journey that involves the filmmaker, since it is the story of her family: Petronila is her great-great-grandmother.