The play is composed of two stories: the first one "Liangzhou Case - Black Clothes Society". During the Tang Wu Zhou period, in the northwest desert, 3000 mail-clad armies who escorted pay silver were all poisoned by evil toxins. The 30 million taels of silver they transported also disappeared. When the case happened, Detective Dee arrived in time. A wonderful battle to break the "God of Death" and "Hell Operation" was launched. In the end, the real bandit leaders, Xiao Tao and Wei'er were captured and committed suicide.