In Barcelona, a young girl hides and watches the street from the window. As the city is besieged by bombs and soldiers, he prepares to escape. In a small mountain town, a mysterious character will be waiting for him who will help him get to France. During this journey of a few days, you will walk through the border areas and meet some of their inhabitants. From above the invisible line that separates two countries, he will see the world he is leaving behind and descend into the unknown.