Before his father died, Yang Can (Zhu Yuchen) only wished to see his son join the special forces. Yang Can fulfilled his father's last wish with his own actions. In the special forces, Yang Can met a female instructor named Na Min (Wang Like), and the two had a stalemate. Afterwards, Yang Can met Mao Xiaobo (Li Haoxuan), Tasi (Zhang Jing) and Lao Hei and other comrades. In the arduous training and crisis-ridden actual combat, a group of like-minded partners forged a deep friendship. Na Min's ex-boyfriend Li Jianfeng (Wang Ban) returned to the company, and his return disturbed the mood of Na Min and his good friend Shi Yu (Sun Yiming). At the same time, Yang Can and Na Min did not know each other, and as time went on, they actually collided with different sparks. A group of passionate young people shed their sweat and blood and tears to defend their country.