In the early days of liberation, Battalion Commander Shen (played by Ge Zhenbang) felt that after liberation, there was no battle to fight, so he should take off his military uniform and go to work locally. The division commander (played by Liu Jia) told him that at the beginning of the founding of the People's Republic of China, the reactionaries were not willing to accept their defeat and had to underestimate the enemy. After listening carefully, he felt deeply and knew the importance of the gun and the great responsibility of their own.