In 941 AD, King Qian Yuanguan of Wuyue passed away, and the new master Juvenile succeeded to the throne. The royal family of Wuyue fell into internal and external difficulties.Five years later, Wang's brother Qian Hongchu (Bai Yu)) invited his envoys to go north to Bianliang to congratulate Zhengdan. However, the situation in Bianliang turned out to be that Khitan troops were approaching the city. Emperor Shi Chonggui proclaimed himself a vassal of Khitan, and Prime Minister Feng Dao (Dong Yong)) weighs all sides in the ups and downs.

During this trip, Qian Hongchu experienced the bleakness of the broken country and disordered human relations in the north. In the crisis, he met Guo Rong (played by Yu Haoming) and Zhao Kuangyin (played by Zhu Yawen).) formed a deep friendship.Returning to Wuyue Kingdom, Qian Hongchu changed his free and loose personality in the past and showed his talents in the court. He eliminated treacherous ministers at home and powerful people outside, and shouldered the heavy responsibility of the country's leader when the regime was in turmoil.

On the other hand, Zhao Kuangyin in the north inherited Chai Rong's unfinished business, established the Northern Song Dynasty regime, and raised troops to go south.In the end, in the face of the general trend of the unification of the Northern Song Dynasty and the well-being of the common people in the world, Zhao Kuangyin and Qian Hongchu gave up war and completed the historical initiative of peaceful unification in the third year of Taiping and Xingguo (978 AD).