The film tells the story of Agathe Schweigert searching for her son. In retrospective captions we learn that her son fled Germany after organizing anti-Nazi action in the early years. He flees to Paris from where he writes her about his routines and life. When the letters stop coming, Agathe takes off on her first ever trip to find the son for which she gave everything. Her travels take her to Paris, eventually to Southern France and Spain, where her son is fighting in the Resistance against Franco.