青年艾迪（甄子丹 饰）痴迷霹雳舞，兴之所至，生活中的一举一动也要伴着舞蹈的节奏。家姐阿英一把年纪仍然未嫁，表妹西巴拉（黄韵诗 饰）帮助阿英打点快餐店，并暗恋着艾迪。这天艾迪路遇落魄武生大眼哥（袁和平 饰），见其身手出色饥肠辘辘，艾迪邀请他去自家店内工作。霹雳舞高手肯尼回港，对艾迪的同学安娜大献殷勤。年轻气盛的艾迪与对方展…

The victim: Police Constable Greg Schultz. The killer: stand-up comic and Greg's older brother Murray Schultz. Greg's death is the first case for Oscar following his recovery and promotion to staff sergeant, Brian in his new position as Angie's partner, and the new homicide detective Mitch Kennecki, an overly cocky kno…