The world is divided into three parts, wars are raging everywhere. In this era of heroes, wars are not only about swords and swords, but also about bloody fights. The life-and-death competition on the secret intelligence line is surging in the shadow of the rolling torrent. Two "little people" who are not in the spotlight of the troubled times - Chen Gong (played by Chen Kun) and Xun Xu (played by Bai Yu), their brotherhood of life and death breaks out in a thrilling spy war, composing a heroic legend.