"In Enemy Territory" tells the true story of French Jewess Marthe Hoffnung Cohn, who risked her life to scout out war-critical plans in Nazi Germany. Coming from a family in the border region that took in persecuted Jewish children and later smuggled people into the Free Zone, her commitment is a matter of course for her. The Résistance, which Marthe is eager to join, initially rejects the petite woman, but due to her excellent German language skills and inconspicuous appearance, she is sent to Germany as a spy. In highly dramatic and dangerous situations, she demonstrates presence of mind and tremendous courage. Marthe Cohn's story, shaped by the painful fate of her family and her entire people, impresses with the fighting spirit of a woman who gave everything in her youth.