[1] It is directed and written by Alfred Cheung Kin Ting and stars Carol "Dodo" Cheng, Tony Leung Ka-Fai, Sunny Fang Kang, Michael Chow, Sheila Chan and the Director himself.

The cultural differences between Hong Kong and Mainland China and her rivalry with Wu's father, a former military officer of Kuomintang, become a big headache for Cheng, a loyal member of the Chinese Communist Party.

Simultaneously, Superintendent Cheng (Lam Chung) briefs Chief Inspector Wu (Tony Leung Ka-Fai) about a criminal case – Wong Ti, aka Niu (Michael Chow), who admits to smuggling drugs from the Golden Triangle to Hong Kong, is seeking to escape the PRC's capital punishment by helping the Royal Hong Kong Police prosecute his boss, drug dealer Su Kuo-Jung (Sunny Fang Kang).

She fails to understand how the advanced information technology improves working efficiency, but after an experience of a lie detector malfunctioning, she claims that machines are unreliable while human resources always come first.

However, General Secretary of the CCP Zhao Ziyang phones Cheng and threatens her that she will be exiled to the desolate Daxinganling if she fails to catch Wong (as this may mean she is not a good public servant).

But her proposals of arresting Su will surely be rejected by the Attorney General as they are violating human rights and are unlawful in Hong Kong.

Superintendent Mok (Lam Chung) suggests letting them stay at Wu's house to protect and monitor Cheng.

Mok claims that their joint-venture will bring Wu a good career perspective even after the transfer of sovereignty over Hong Kong.

A witness of the shootout finds a letter from his brother telling Niu that he is living at a beautiful village called Sau Mau Ping.

Returning home, Cheng finds Hsiao-Sheng wearing a National Revolutionary Army uniform with Colonel Wu and his fellow veterans, intoxicated.

Detectives are scattered around the shop to spot Niu but their cover is later revealed as Chan drops his revolver when he tries to save a girl in the middle of the road.

The police and Niu's duet exchange fire in the crowded street and after a long chase they meet each other at a narrow corridor inside a building.

New information shows that Su is meeting some potential drug dealers in nightclubs and the police need female undercovers to listen in on their conversations.

While Superintendent Mok arrives and daydreams about his promotion to Commissioner of Police, Cheng and Colonel Wu finally become friends and achieve a collaboration between the Communists and the Nationalists.

At the border, Cheng gives Wu a letter, expressing her apologies for her bad temper and thankfulness during this working tour in Hong Kong.