Amélia goes back in time to 1917, in the middle of the World War, to meet Jean-Corentin Carré. Enlisted in the army at the age of 15, this Poilu is the youngest soldier in France.
In this 4-winged plane, Amélia, her dog Astro, and the soldier fly over the front between France and Germany. But an enemy plane suddenly seems to be heading straight towards them! Perhaps it is the famous Red Baron? A German pilot who seems to stop at nothing…