Four young trainee police officers begin their careers with idealistic expectations but soon face the harsh realities of law enforcement. As they deal with pressure, conflict, and modern-day challenges, they grow through mentorship and experience to become qualified officers.

• Zhang Ruoyun
• Bai Lu
• Wang Jingchun
• Ning Li
• Xu Kaicheng
• Zhao Yang
• Cao Lu
• Wang Tonghui