Caroline Proust, Gregory Fitoussi, Philippe Duclos. The fourth season of this gritty and bold French crime drama begins with a young extremist killed by his own homemade bomb. What follows is a crime story that spirals out in all directions. In French with English subtitles. 12 episodes on 4 DVDs. 2012/color/10 hrs., 14 min/NR/widescreen.