Unlike one of the 19th century’s masterpieces written by the French novelist Victor Hugo, here we have a modern times story, revolving around one of the problematic districts of Paris. We follow Stéphane who has recently joined the Anti-Crime Brigade of Montfermeil. He soon discovers that the methods his colleagues Chris and Gwada use to fight crime in that area are somewhat unusual. Stéphane also learns another valuable lesson. In a troubled district with so much tension between the different groups living there, it is better to stick to your team and not to question the way they try to do their work. After an embarrassing situation when the tree of them are overrun while trying to make an arrest, it becomes obvious that someone is filming every step they make using a drone.