Arthur Doublon a mechanic nicknamed Chignole by his army buddies is soon to become an aviator. He is betrothed to Sophie Bassinet whose dad is a coachman and mom is a janitor in Montmartre. On their way to Nancy, Chignole and his lieutenant, Old Charles, meet an American soldier from the Lafayette Escadrille. Soon afterwards, Chignole's dog, Boudoubadabou, is wounded by a shell burst and Racine, their mechanics, is killed... see more