Jiang Chen, the god of war on the border, infiltrated the Su family in Yuncheng as an "unemployed son-in-law" on the orders of Commander Qin in order to investigate the bloody injustice of his family. In March of his marriage, he endured the humiliation and was ridiculed by relatives of the Su family at the Mid-Autumn Festival banquet, but only Su Ruoxue, the eldest daughter of the Su family, hid a trace of goodwill and suspicion.
In order to protect Su Ruoxue and secretly pursue the murderer, Jiang Chen showed his talents with thunderous means: breaking through the Li Group's contract trap and regaining the photovoltaic project; uncovering the betrayal conspiracy of the second uncle of the Su family and stabilizing the foundation of the Su family; going deep into the western suburbs warehouse to face the remnants of the "Ghost Hand" and gradually approaching the truth about the family's injustice. As the investigation deepened, he discovered that Zhao Kun, a high-ranking official in the DPRK, was behind the "Ghost Hand", and that the destruction of the Zhongyong Hou Mansion was a well-planned political frame-up.
From forbearance and dormancy to thunderous revenge, Jiang Chen cleared business obstacles for Su Ruoxue as a son-in-law and helped the Su family become a new energy giant; at the same time, he gathered his old subordinates and cooperated with Commander Qin to collect evidence of Zhao Kun's crime. In the end, he killed the "Ghost Hand" and overthrew the culprit, vindicated the family's injustice and restored the title of Marquis of Zhongyong. Faced with the invitation from the commander of the Imperial Imperial Army, he resolutely chose to stay in Yuncheng and join hands with Su Ruoxue - the former god of war on the battlefield, finally found a new battlefield beside his lover, and spent his life guarding family and justice.