I Not Stupid Too In English.

The story line is turned in the lives of Tom Yeo (Shawn Lee), his brother Jerry (Ashley Leong) and their friend Lim Chengcai (Joshua Ang). Tom, who was 15 years old tend to like the technology and is a talented blogger, while the 8-year-old Jerry enjoys the performing arts school and has a lead role in the school concert. Mr. and Mrs. Yeo (Jack Neo and Xiang Yun) has a schedule that is so dense that only they can give a little time to spend their time with their children, their families lead a strained relationship.

While Chengcai have been raised that an ex-convict father (Huang Yi Liang) without the presence of a mother, inherited fighting ability.

When raids phones in school, Tom found to have pornographic VCDs. When the teacher wanted to confiscate it, Chengcai make statements that provoke his teacher hit him, triggering a massive brawl. Principal decides to issue a temporary Chengcai Tom received his mistakes publicly flogging them.

Tom and Chengcai joined a local street gang, and for starters they are forced to steal an iPod from a store. However, they were caught by two con artists who have a connection with a street gang and pretending to be a police detective, which requires them to pay S $ 2000 in 2 days, or they go to jail.

When teaching children to learn at home, Mr. Yeo told his children that other people will pay S $ 500 per 1 hour. Jerry wants her parents to attend her school concert to watch the show, start saving and eventually took a steal. Once caught, whipping his father Jerry, but was surprised when the boy explained that he wanted S $ 500 to "buy" time of 1 hour her father. It urges Mr. Yeo and Mrs. Yeo to read Tom's blog and realized how her children feel worthless and isolated.

Not being able to increase the amount of money S $ 2000 with a business of their own, Tom and Chengcai necklace rob an old lady, but regret their action and return to his grandmother. Fighting ensued, and Chengcai beaten by some gangsters, while Tom's mobile phone fell out of his pocket when he was arrested by officers stand cruel. The phone fell to the ground and accidentally called Mr.. Yeo who will do a presentation about 3G phones for a contract worth S $ 3 million.

Mr. Yeo soon came into the crowd and begged her grandmother to give Tom a second chance. When police arrived, the grandmother said that she just made a call just kidding. 2 days later, Mr. Yeo met two police detectives fraudsters and give them thousands of dollars of counterfeit money; those men from the street gang was later arrested by the real police officers who have been waiting for this ambush. Finally Mr. Yeo and Mrs. Yeo understand their children and watch shows Jerry happily.

Gangster who beat Chengcai post-conflict return the necklace when his grandmother, to kill this young man to a pulp. Mr. Lim, who was walking around the scene, trying to protect her son, but her head when pushed down the stairs. Mr. Lim was taken to the hospital, and was declared critical. In the final seconds before his death, Mr. Lim told Chengcai that he loved her and should Chengcai her ability in martial arts. Watching this scene, the principal untouched and allow Chengcai go to school again. Chengcai eventually became an international martial arts athlete.

Mrs. Yeo              : focus on the job, so do not care about her ​​son
Mr. Yeo                : abusive to his son, more concerned about work, workhorse
Jerry                      : innocent, dishonest, a boy who needs love
Tom                       :  obstinate, loyal friend, lonely son, blogger,
Chengcai                : love martial art, do not like to study,
Kepala sekolah      : obey regulations, care, can not speak Chinese,
Pak Fu                     : abusive, wrong way of teaching
Mr Lim                   : Abusive to his son, A lonely widower, ex-convict, do not care about his son, never praised his son,