Qin Chuan, who graduated from the police academy, and his friends Ye Maosheng and Li Wen returned to their hometown with dreams of heroes and detectives and became ordinary policemen at the police station.The huge gap between reality and ideals did not stop him from pursuing his dreams.By chance, Qin Chuan subdued the gangster who was about to cause an explosion with his bare hands, and thus began his career as a criminal police officer.