Paris, 20 13, a wall separates the backward areas from other areas. There is no law and system, and it is controlled by triad groups. They are bold and do all kinds of evil. Dammeyer is an elite of the police station, a senior inspector of the special action team and a martial arts master. He is very good at penetrating the enemy. He is famous for his quickness, agility and accuracy in completing tasks. This time, the government gave him the most difficult task in his career. A weapon with mass destruction was stolen by the fiercest gang in 13. Dammeyer's task is to dismantle the explosive system of this weapon of mass destruction, so he must cooperate with Leto, because Leto is the only one who knows the inside story of this gang, and Leto also wants to save his sister who falls into the hands of the gang.