Jackie Chan stars as a lithe, acrobatic burglar and skilled safe cracker willing to take on any challenge, no matter how perilous, so long as the rewards are sufficient to finance his gambling addiction. However, his relatively uncomplicated life is quickly turned upside down when he and his partners in crime, Landlord (Hui) and Octopus (Koo), accept a mysterious kidnapping assignment from an eccentric underworld tycoon. Their target unexpectedly turns out to be a cute baby who instantly steals their hearts and tranforms the hardened criminals into matronly protectors of their fragile but troublesome charge. What appears to be a simple kidnapping deal takes a deadly turn, however, when the time comes to hand over the prize to the client and it becomes apparent that the baby may be in more danger than first anticipated. Discovering their consciences, the trio decides the baby’s safety is worth more than their biggest ever payday to date and soon they’re caught up in the fight of their lives as they take on specialist police units, mob enforcers and, worst of all, dirty nappies!