Tang Yuan was betrayed by a spy during a mission, causing his brother to die tragically. When sending his younger brother to his funeral, he learned that his family was wiped out when he and his younger brother joined the army. After some investigation, it was discovered that the murderer was the stepmother who forced him and his younger brother to join the army. It was also the stepmother who caused all 135 members of the Tang family to die in a sea of fire. So when Tang Yuan returns, he must complete his younger brother's hospital, make the four major families who forced the Tang family pay the price, and at the same time find out the spies who betrayed them during the mission. But Tang Yuan soon discovered that his cousin Tang Zihua was not dead, but instead revealed a series of mysteries...