Under the reign of Empress Wu Zetian, the country is prosperous and people live well. Nevertheless, there are lots problems in the national boundaries. It might evoke the war any time. De Renjie is assigned to investigate each criminal case there. By his amazing analytical ability, he keeps solving the cases and stops one biggest scheme which could stir up a national war. After finish the scheme, there comes another big case. His intuition brings him to an enemy's place. Unfortunately, he is caught by enemies and they torture him. Though in such situation, De Renjie isn't nervous and frightened. As usual, his intelligence helps him destroy the hideout of villain team "Spawnwrithe".