Zak works as a diver in the port of Dunkirk. Iranian, he arrived in France around ten years ago. He obtained French nationality after several years in the Foreign Legion. Keivan is also Iranian, he is part of the flood of migrants who have just washed up on the coast of the Channel, their hope set on England. He will try to take advantage of Zak's privileged access to the port to cross the Channel. But is Zak ready to help his compatriot?