All personal thoughts have to be put aside under the most extreme work conditions. When the enthusiastic new firefighter Fong Lei On (Bosco Wong) joins the fire station, he begins to experience problems with senior firefighter Cheuk Pak Yue (Kevin Cheng). Lei On mistakenly thinks that Pak Yue has stolen the heart of the fire department clerk, Ko Wai Ying (Myolie Wu), away from their station officer, Chung Yau Shing (Wong Hei).