Young police officers Cheung King-shan (played by Cheung Chun-long), Sin Hoi-ching (played by Choi Si-pei), Ho Sze-wah (played by Tang Pui-yee), and Wu Kwun-chung (played by Chu Man-han) applied for the airport special police for different reasons. Under the strict guidance of instructor Man Wing-keung (played by Kwan Lee-kit), the four graduated and joined the airport special police team. However, Jingshan often confronted Chief Inspector Cheung Chun-hek (played by Wong Chi-hang) of the special police team. Sergeant Ma Yung-yi (played by Yeung Ming) was well aware of their rift and would often intervene to ease it. Jingshan accidentally met flight attendant Yu Anna (played by Tong Luk-man). It was easy for the two to fall in love but difficult for them to get along. Instead, Jingshan gradually developed subtle feelings for his female partner Hoi-ching. Everyone witnessed joys and sorrows while on duty, wandering between life and death, and gradually established their sense of mission as airport special police! However, a huge crisis is quietly approaching, putting the team in an unprecedented predicament...