Catherine Lewi comes from a community that has all but disappeared = the Jewish minority in French villages, from Alsace to Normandy. In this episode, Rebecca tries to understand how Catherine led her quest to keep her family's heritage and legacy alive. Along the journey, Catherine meets Yves, whose parents directly experienced the impact of the war in Russia and Poland, and who shares Catherine's responsibility in transmitting Jewish values and traditions. Together, they go on an exploration to find the right place to pass on the spark.