Hong Kong Flying Service (GFS) Air Crew Chief Class 2 Ko Ho-fung (Ekin Cheng) and Pilot Class 1 Ip Ching-wan (Bowie Lam) work well together, one is responsible for rescue and the other for driving. Ko Ho-fung's girlfriend Kang You-lan (Charmaine Sheh) was in a coma due to a car accident three years ago and has not woken up since then. Ko Ho-fung visits her in the hospital every day, and finally a miracle happens. You-lan wakes up, but has lost all her memories. Under Ko Ho-fung's enthusiasm, she accepts him again. Ye Ching-wan has been divorced from his wife for many years and lives alone with his lovely son Jacket. He does not feel the love of his landlord and colleague Xiaojuan for him. A new batch of GFS students are born. Ko Ho-fung and Yun serve as mentors for Shi Chuqi (Linda Chung) and trainee pilot Jiang Jianuo (Lai Lok-yi) respectively. Qi was abandoned by her father since childhood and grew up in an orphanage, with a serious inferiority complex; while Jianuo is a rich young master, but his family has suddenly changed. Faced with all kinds of pressure, can they graduate smoothly? Youlan feels ignored by Kefeng, who is always eager to help others, and her feelings gradually turn to Ye Qingyun. The sudden recovery of her memory makes her remember the truth of the car accident that day. Where will their relationship go?