During Wu Zetian's reign, due to the turmoil in the court, Di Renjie, who was ambitious, was demoted to a remote town in the east.Although he was in adversity, he never changed his original intention to uphold justice.Di Renjie was talented and skilled in his judgment of cases. He uncovered the fog while peeling off the cocoon again and again, and accidentally touched the shocking secret hidden deep in the court.In order to find out the truth, he embarked on a journey across Jiuzhou, solving strange cases and rectifying the chaos, and every step was a test of life and death.Finally, he returned to Chang'an and met his father again.The father and son work together to break the huge conspiracy that endangers the peace of the country, turn the tide and support the building to collapse.