Qian Xiaotian (played by Wang Tao), an outstanding graduate of the police academy, wanted to join the criminal police team and do something, but was assigned to the police dog team and became a comrade-in-arms with the police dog "Jiaozi". But the arrogant Jiaozi did not seem to be obedient, and Xiaotian made mistakes repeatedly and was criticized by the team. Seeing that Li Ke (played by Tong Yixuan) and Youki, who graduated from the same year, performed well, Qian Xiaotian, who was unwilling to admit defeat, was determined to change. As he and Jiaozi gradually established trust, their actual combat results also reversed all the way. The police force martial arts competition was about to begin, and an accident happened...