Gilda Bessé shares her Paris apartment with an Irish schoolteacher, Guy Malyon, and Mia, a refugee from Spain. As the world drifts toward war, Gilda defiantly pursues her hedonistic lifestyle and her burgeoning career as a photographer. But Guy and Mia feel impelled to join the fight against fascism, and the three friends are separated.

Inventor Joseph-Armand Bombardier and the beginnings of his passion for engineering.