During the Northern Song Dynasty, the poor scholar Bao Zheng went to Beijing to take the imperial examination and was inadvertently involved in the conspiracy of the Eighth Prince to rebel. With his extraordinary intelligence and wisdom, Bao Zheng exposed the Eighth Prince's attempt to murder Song Renzong and seize the throne, and protected the safety of the country. Because of his meritorious service in solving the case, Bao Zheng was promoted to the position of Supervisory Censor and was ordered to track down the murderer who tried to assassinate Liu Fu, a royal relative. Liu Fu was the younger brother of the current Empress Dowager Liu E. He had always relied on his power to be domineering and oppress the people. Bao Zheng cracked the assassination case and uncovered Liu Fu's many evil deeds, which eventually led to Liu Fu's many unjust acts and self-destruction. Because of Liu Fu's case, Bao Zheng was demoted to Duanzhou. A few years later, a mysterious fire case suddenly broke out in the palace, and Renzong almost died in the sea of fire. Therefore, Bao Zheng returned to Kaifeng Mansion and was ordered to investigate the fire case. After a difficult investigation, Bao Zheng finally found out the truth of the fire case, and took this opportunity to return to Kaifeng to help Renzong govern the world. Bao Zheng assisted Renzong in defeating the powerful ministers and the empress dowager who abused their power, ushering in an era of prosperity.