During the reign of Wu Zetian, there was rebellion in Qidan; Wu Zetian announced that the celebration set on the first night of Chinese New Year; Tang Bao who was poisoned was sent to where Di Renjie lived in.

An assassin disguises himself as Zeng Tai and snakes in the hose of Di Renjie; Di Renji foresees this and luckily avoids the assassination; Di Renjie finds that there are some secrets which Tang Bao tries to hide.

General Wang Xiao-Jie received the imperial decree which blamed the Provincial governor Shi Qiu-Jing for losing battle in Chongzhou County; general Wang caught Qiu-Jing and escorted him to Sandou County; general Wang killed Qiu-Jing's alliances.

On the way to Chongzhou County, Di Renjie receives a report about Li Kai-Gu's carjacking; Di Renjie leads his subordinates to investigate this case in the mountains; they find out an accident.

Di Renjie visited the Dongliu Lin at night and found out bandits; after interrogation, Di Renjie acquired the criminal evidence of Wang Xiao-Jie; Li Kai-Gu and Yuan Fang who was poisoned got caught by enemies.

By Li Kai-Gu's guidance, Yuan Fang found the governor Shi Qiu-Jing and realized his situation; Yuan Fang persuaded Shi Qiu-Jing to ask for Di Renjie's help; after a series of Di Renjie's questions, Wang Xiao-Jie couldn't help but reveal himself.