In the quiet village of Carriveau, Vianne Mauriac says goodbye to her husband, Antoine, as he heads for the Front. When France is overrun by Nazis, Vianne is forced to take an enemy into her house, and her life and her child's life is at constant risk. As danger escalates around her, she must make one terrible choice after another.

Vianne's sister, Isabelle, is a rebellious eighteen-year-old girl, searching for purpose with all the reckless passion of youth. While thousands of Parisians march into the unknown terrors of war, she meets the compelling and mysterious Getan, falls in love.  When he betrays her, Isabelle races headlong into danger and joins the Resistance, never looking back or giving a thought to the real consequences.