Lifeline

Yau Sui (Sean Lau) is a veteran firefighter of the Tsz Wan Shan Fire Station who has an arrogant attitude because of his extensive experience. By chance, Sui meets Annie (Carman Lee), a doctor who becomes troublous after a recent breakup with her boyfriend. Sui consoles her and they begin a relationship. Meanwhile, Sui strikes a rivalry with the newly appointed leader of the fire station, Raymond Cheung (Alex Fong (actor)), often getting into disputes. Later, a big fire erupts in a weaving factory located in Tsuen Wan, where Sui, Raymond and their team members arrive to the scene, where the fire level rose to 5th alarm. Because of many hazardous objects present, an explosion occurs, releasing toxic gas. To deal with the dilemma, Sui and Raymond must put their rivalry aside and work together.