Modern retired veteran Chen Nan accidentally travels to another world, and at the start becomes a death row inmate in Shuhukou. Trapped in a desperate situation, relying on his personal space, modern military equipment, and combat experience, he fights his way out of the cell and rises all the way along the border battlefield. When aristocratic powerful families treat human lives like grass, he no longer fights for the old order, leading his followers to establish the Chen Family Army and capture Heishiya. When the era of cold weapons collides with modern firepower, a mere death row inmate vows to rebuild Daqian and establish a dynasty of his own!