More than fifty years after the end of the war, a filmmaker and a photographer, coming from the two camps of conflict and children heirs of Franco-Algerian colonial history, took us back in 1962 to the Algerian Sahara. From a desert zone irradiated to the suburbs of Algiers, they follow the course of an experimental nuclear explosion. From the trial to the accident, from the environmental impact to the "recycling" of the places of the past ... The starting point is historical but the story told catches up with us in the present and comes to seek us where we are - at home - for a face to face with fallout without borders.