Xiao Zhenguo, who had served in the military all his life and was full of loyal people, was seriously injured and sent to the hospital when his only grandson Xiao Ran was sent to the hospital by the playboy Zhao Tianyu. Faced with the money humiliation and power oppression of the Zhao family, this silent veteran no longer tolerated it. He used his own power to not only seek justice for his grandson, but also accidentally brought up the old case of his son's disappearance twenty years ago, and finally uprooted the evil forces, demonstrating the power of justice that will eventually come.