Isaac, a teenager worried about the future of the planet, decides to climb the Pic du Midi alone. For him, this high peak in the Pyrenees is a symbol of unspoilt nature, which he wants to get closer to. The encounters and obstacles he faces along the way will lead to a total and unexpected metamorphosis through fire. Part tale, part initiation story, Isaac evokes the anxieties of a generation nourished by the threats of a burning world, from which it will escape through a supernatural ritual.