Yue Fei's second son, Yue Lei, was rebellious and cynical by nature, and after his father and brother were killed, he embarked on the road of revenge alone. But how did the young man know that the rivers and lakes were dangerous, he assassinated Qin Hui and was used instead, and it affected the only remaining righteous forces of the government and the opposition, and he was on the verge of death several times. With the help of the martial prince Ah Cong and the loyal and righteous people, Yue Lei worked hard to find evidence of Qin Hui's treason, wandered the imperial city and the rivers and lakes, experienced the hardships and hardships of the people, and he was no longer the angry young man he was at the beginning. However, the upper-level officials of the Southern Song Dynasty were fighting fiercely, and the emotional entanglements of the monarchs and ministers were complicated, and it was difficult to rehabilitate their father. When the sky was correct and the dust settled, Yue Lei decided to take Xia Yunfei, a folk girl who had been repeatedly let down by him, to wander the world, and fate gave him the biggest problem. In the end, Yue Lei succeeded his father and became the protector of the country.