After 5 years the airport's traffic is tripled. Yeung and Cheung work together despite lingering affections. Pilot Guo pursues Cheung while Yeung's old flame returns, forming a chaotic love square pressured by an emergency typhoon landing.

Since relocation to Chek Lap Kok in 1998, passenger traffic at Hong Kong International Airport has increased threefold in twenty-five years. And Yeung Sheung-wai (Kenneth Ma), who started out as a clerk, has been promoted to IAC Duty Manager. He is tasked with overseeing the operations of the airport. Sheung-wai also has a contingent of amicable partners, including his assistant-cum-admirer Fong Ho-yee (Rosita Kwok), Lui Chi-shan (Samantha Ko) - who handles airport passenger services - Chan Kit (Tony Hung) - who takes care of aviation security - and Lee Sing-cheung (Tsui Wing), who is responsible for apron services. They collaborate to assist in dealing with all kinds of incidents that take place at the airport. Sheung-wai keeps in touch with his ex-wife Cheung Yeuk-ling (Sisley Choi), Metro Harbour Airlines Airport Supervisor. Actually, they still think of each other after their divorce. The duo's relationship is rekindled when airline captain Kwok Kai-kwong (Brian Chu) and flight attendant Ko Nga-man (Tiffany Lau) turn up.