This movie was the first produced by Mediacorp Raintree Pictures, and was based on a character that was made popular by Television Corporation of Singapore (now MediaCorp) television series.
Shooting of the film began on 21 September 1998, and involved a 50-member local crew. According to the production company, this was the first Singaporean film to feature high-speed chases, and choreographed fight scene involving hundreds of extra.
In an effort to broaden the film's appeal, well-known Hong Kong celebrities Eric Tsang and Sheren Tang, as well as Malaysian singer Ah Niu were cast, in supporting roles.Jack Neo as Liang Po Po
Mark Lee as Ah Beng
Henry Thia as Ah Seng
Patricia Mok as Ah Lian
John Cheng as Big Boss
Ah Niu as pump attendant
Eric Tsang and Sheren Tang as consultants from Hong Kong
Jack Neo as Liang Xi Mei (cameo)
In addition, Zoe Tay, Chen Liping, Evelyn Tan, Kym Ng, Robin Leong, and Chris Ho appeared as cameos.
The main character, an 85-year-old lady named Liang Po Po, made a decision to leave her retirement home in search of a new life, with a belief that she can still contribute to society.
On her first day, she was robbed by female gangster Ah Lian and her comrades, and when Liang tried to work as a gas pump attendant, chaos ensued. Liang then met and befriended a couple of gangsters named Ah Beng and Ah Seng, and got involved in a secret society that is involved in crimes. Taking advantage of Liang's unsuspecting nature, the society used her to sell pirated VCDs, as well as debt collection.
As Liang develops a genuine friendship with Ah Beng and Ah Seng, the man who runs the secret society, known as Big Boss, decided that his gang should be respected, and enlisted the service of two Hong Kong triad consultants, in an effort to improve the image and profile of the gang. The consultants insisted that gang members should be dressed in suits and sunglasses, and the Big Boss even dreamt of himself getting involved in politics, as a way to exert greater influence on civil society.
To raise money for an election campaign, the consultants persuaded Big Boss to orchestrate a bank robbery. Liang was seen as an ideal person to carry out the robbery, because it was felt that no one will suspect an elderly person for a robbery, and if caught, Liang is expected to gain sympathy from authorities. The plan was discovered by Ah Beng and Ah Seng, who then tried to send Liang away. Liang, however, refused to leave her friends, the was determined to follow through with the mission, unaware of what it actually entails.
The robbery was successful, but the bank later reported a much bigger amount of money missing, thus sparking a nationwide hunt for Liang. Meanwhile, both the gangsters and authorities race against each other to find Liang, and recover the money first. As she goes on the run, Liang realized she was used by Big Boss and his consultants, and decided to go on a path to turn the table on those who mistreated her.