Walk on Fire

In Macau, criminal Tong Heung-tung of the Hunan Gang, who bombed the Hong Kong police headquarters, was being send back to Hong Kong by Kowloon OCTB inspectors Lee Ho-lung and Lo Mo. During the process, the police van was ambushed by the Hunan Gang who helped Tong escape. Lee chased the gang all the way past the Mainland border and arrested them causing mass destruction which maddened his superior officer Chan.