A professional hitman receives brain trauma that leaves him with a week to live. With absolutely nothing to lose, he goes on an insane crime spree that will garner the attention of both the police and all the city's criminals.

职业杀手龙也完成一个任务后被流弹射中，子弹藏于脑内不能取出，不知能活多久，开始在香港“等死”，接近死亡边缘却令他感觉兴奋。一次偶然机会，他碰上了三个银行劫匪Dino、狗仔、猫仔，打劫银行成为他最新刺激游戏。那边厢，飞虎队狙击手Joe因错杀女警自信尽失被投闲置散，跟随女督察程樱对付四人。Joe连累程樱重伤，樱醒来嘱咐Joe要把贼人全部捉回来……