The film is an action comedy about three gangsters who kidnap a baby. For this film, Chan wanted to play a full-fledged villain, but Chinese censors rejected the original script. So, In the movie, Chan portrays a gambling addict who kidnaps the grandson of a tycoon for ransom, but ends up as a hero trying to protect the child from the mob.
The film follows a group of thieves made up of Slipper (Chan), Octopus (Louis Koo), and Landlord (Michael Hui). They steal for different reasons. Sliper is a compulsive gambler who faces debt collectors at his door. Octopus spends his fortunes to court a rich girl. Landlord does not spend his loot, but saves all of it and keep it in a safe in his house. After Landlord's house was broke into and all his savings stolen, he was desperate to regain his fortune and accepted a job offer that will pay him in huge sums. At the same time Sliper and Octopus were both in desperate need of money again, and they went for the job without knowing the details. Only after breaking in did they know that Landlord was asked to steal a baby, and return it to the baby's allerged grandfather, who is also the head of a Triad. When they were on the way to hand over the baby, they ran through a police road block, resulting in a car crash. Landlord was hospitalized and kept in police custody because of the accident, while Slipper and Octopus was forced to take care of the baby, deciding that it will be best to hold on to their prize before the Landlord is released. They faced challanges from all fronts, including the Triads, Slipper's creditors, Octopus wife and of course the baby they've stolen.