A truck carried a large amount of gas tanks is being turnover in an accident. The power of 26 tons gas in the truck equals to a small size of atomic bomb, and will be exposed at any time. Lam and Wai are lovers, they are allocated to Government Safety Bureau and Gas Company respectively after graduated from university. When the accident happens, they are being ordered to take up the job. How do they deal with this difficult situation?

Ding Jian arrives in Guangzhou and learns about city life.