He Dongming, the young master of the He family, Shen Jialiang, the company commander of the National Army, and Wang Zhaolan, the leader of the mountain stronghold, met by chance while fighting the devils. After many encounters, the fate of the three was firmly tied together, and finally they swore an oath of blood in a breakout battle with a huge disparity between the enemy and us. At the moment of death, they became brothers in life and death, intending to meet in the afterlife. Unexpectedly, all three brothers miraculously survived, and then joined the Communist Party, the Kuomintang, and the Japanese puppet army. For their respective political positions, the three embarked on completely different life paths, and thus launched a desperate contest mixed with love and hate. Until the last moment, Wang Zhaolan, who joined the Japanese puppet army, suddenly came to his senses, and the three brothers joined forces again to fight a life-and-death battle with the devils and won the final victory.