J.K. Rowling goes on a journey in France to trace her mother's roots. She discovers that a family war story might not be what she thought when military records reveal a surprising truth. Tracing the trail even further back, Jo learns of her 2x great-grandmother, who had plenty of struggles both as a poor, single mother and a witness to German Invasion during wartime, which forced her family to choose sides in a time of turmoil.