What is left behind

A couple of times a year, the sky turns red in France. Sand dust from the Sahara is passed through a difference in air pressure from North Africa to Southern Europe. This dust, a time capsule containing cesium-137 from the French nuclear tests in Algeria, covers everything. The film exposes the impact of a war that was never fought. A French veteran and archeology students share and speculate on what will be remembered and what will be hidden under the sand forever.

In a world where billions are spent on state-of-the-art weaponry, the deadliest weapon is still a so-called Improvised Explosive Device, which most people can make from materials found at their homes. An IED maker, a soldier and a philosopher describe their relationship with these objects, which can have almost any shape, form and content.