François Margolin and Lemine Ould Salem expose the radical ideologists indoctrinating thousands of jihadists. They venture to Gao and Timbuktu in Mali to meet Omar Old Hamaha, head of jihadist group Ansar al-Sharia; to Mauritania, to meet a young imam from Nouakchott; and finally to Tunisia. The raw documentary also displays ISIS’s propaganda images, bereft of commentary or voiceover; the creators have taken the risk of confronting the audience with unedited Salafist rhetoric, for a greater understanding of what we are up against.