Plot: In the late 1980s, He Wei Dong, a sniper of the Langya Reconnaissance Brigade, was killed by the enemy sniper "Scorpion" while saving observer Fan Tian Lei. His son He Chen Guang was determined to inherit his father's ambition. Fifteen years later, Fan Tian Lei is already a Langya special operations sniper instructor. He encourages the national youth martial arts champion He Chen Guang, the social youth Wang Yan Bing with considerable shooting talent, and the simple but extraordinary perseverance rural boy Li Er Niu to join the army. The recruit training adopted the devil-like training of the scouts. The three were assigned to a regiment and then to a class. He Chen Guang, Wang Yan Bing and Li Er Niu became the special forces. Together with the pilot Song Kai Fei and Xu Tian Long from a martial arts family formed the "Red Blood Cell" team. There are still many dangers waiting in the future. They overcame various difficulties, but how will they face "scorpion"?