A sand speck odyssey. Beached on an Atlantic shore, blown by the north wind on the grey and white dunes, reaching the outskirts of a forest, it runs through a multitude of ecosystems. Each of them is a universe filled with species incredibly and often spectacularly adapted to both the absence of water and the presence of the ocean.
Told as the story of the life of a speck of sand, the film offers a positive -for a change- vision of man's interaction with Nature. Because modern dunes were born in a human mind.