Ninety-eight-year-old Marthe Cohn recounts the trials and risks she faced during the Second World War. An upstanding citizen in her community, Marthe hid her French-Jewish heritage to avoid capture at the hands of the Nazis. Marthe then served her country as a spy behind enemy lines over the course of the war, a past she kept hidden until her old age. Documentary footage details Marthe's journey around the world to tell her story of bravery and service. Directed by Nicola Hens.