In 2015, French Jewish philosopher Bernard-Henri Lévy sought to understand the psychology and culture of those embroiled with ISIS in the Middle East. Accompanied by a team of cameramen, Lévy travelled through Iraqi Kurdistan. The Kurdish fighters he encounters share unforgettable stories and show unfailing determination in their fight against jihadi fundamentalism. His journey offers an unprecedented view of a war that rages in our own time, and whose stakes are of global importance.