Lin Qiuhong, a sharpshooter who bears the trauma of accidentally killing his comrades, met Ishikawa, the top Japanese sniper, in the eight-year war of resistance. Across six dangerous terrains, he faced not only enemies, but also the "400-meter fear" and fatal hand tremors in his heart. Ishikawa is both an old enemy and a mirror image, and the two sides continue to evolve through seven life-or-death duels. This is not only a battle of tactics and marksmanship, but also a strangulation of will. In the end, Lin Qiuhong redefined the meaning of aiming. Victory does not lie in killing, but in redemption and letting go.