"Dayong Hidden Dragon" takes the precarious Dayong Dynasty as the background, and outlines a magnificent epic picture of the game between powerful officials, the hidden dragon's counterattack, and the turmoil of the family and country. At that time, the dynasty had gone through three hundred years of vicissitudes. Internally, powerful officials were intertwined and controlled the government. Externally, there were raging wars and territorial invasions. In addition, natural disasters were raging, the people were in dire straits, corrupt officials were lining their pockets, and millions of victims were revolting. Although Emperor Jingming wanted to turn the tide, he was hampered by the imbalance of power, and the dynasty was on the verge of collapse.
In order to break this crisis, Emperor Jingming secretly implemented the "Hidden Dragon Plan" and entrusted the prince Zhao Chen to his confidants and sent him out of the palace, so that he could go through hardships at the bottom of the civil society, experience the suffering of the people, temper his character and resourcefulness, and accumulate strength for the future eradication of the clan and saving the dynasty. Another core clue of the story is that Zang Hai, who is burdened with a family blood feud, thought he was just a revenge schemer, but unexpectedly uncovered the shocking secret of the royal bloodline struggle - his mother was a descendant of the nobles of the Dongxia Kingdom and held the secret of the "Ghost Seal" related to the fate of the Three Kingdoms. Behind the tragedy of the family's annihilation was the layer-by-layer calculation of Prince Yongrong, Marquis Pingjin and the imperial power.