Scenes of Marie's life are interwoven with scenes depicting the future impact of her discoveries, including external beam radiotherapy at a hospital in Cleveland in 1956, the atomic bombings of Hiroshima and Nagasaki, a nuclear bomb test in Nevada in 1961, and the Chernobyl disaster in 1986. As she dies in 1934, she sees visions of these events before awakening in a hospital room. Pierre arrives and they leave the hospital together. The film concludes by stating that the Curies' mobile unit X-rayed more than a million men during the war "saving countless lives", that their research would be used to create radiotherapy, and that the Joliot-Curies would discover artificial or induced radioactivity in 1935.