Jim Yi Bond is a famous film star who specializes in spy roles, but in real life he is a scaredy cat who would faint when he runs into the smallest of robbers. His wife Kwan Man King thus divorces him and heads to work in Hollywood.
Janet and Teet Nam are two Interpol who are outraged that they lose a terrorist Lung Yut during a chase in Thailand. At this time they receive information from headquarter about Lung planning to receive a biological threat in Hong Kong.
One day Kwan returns to Hong Kong and says a Hollywood film company wants Jim to be in a movie with her. Their daughters also hope that their parents can reconcile, but Jim has to become a true hero in life in order to win back his wife.
Teet Nam follows Lung's follower Donno to a virus experiment bath house that disguises itself as a high class sauna. Teet Nam follows them into a secret passage and discovers that Lung already has two kinds of viruses, "super pneumonia" and "intelligence regression virus", to prepare to blackmail the world with. Teet Nam fights Lung to get the super pneumonia virus but is infected with the intelligence regression virus as his intelligence drops to a four year old's. In the chaos he escapes to Jim's home. Janet loses contact with Teet Nam and goes undercover as a masseuse at the sauna to investigate but is captured. Later with the help of Donno's son she escapes to Jim's home. Lung follows, cannot find the virus and takes away everyone to force Jim to hand over the virus......