The May Do Building is on fire; heavy smoke overcasts the whole building. Firemen, TIN, MING, FUNG and HING receive the mission to put out the fire immediately. In the mission, MING, TIN and FUNG trap in the fire after a sudden explosion of the lift….

A year ago, YEE is riding her motorcycle to report her first day duty at Fotan Fire Service Department in a hurry. She knocks down TIN by accident. YEE is assigned to rescue 2 drowned children; however, her effort does not reward with appreciation. Not understanding the rescuing procedure, a victim’s mother rebukes YEE severely for her cruelty in not saving her child.

A schoolteacher of YIU reports to the Fire Service Department that the students are sick with the breeze of unknown toxin gas. YIU is the daughter of TIN; hence, when TIN realises the case, he rushes to school at once. But he is upset, while he finds that his brother-in-law, FUNG has taken YIU away……