广东大良富家子南斗官(张展鹏)学得一身功夫,在乡间常闯祸,其母希望斗官娶妻立品,乃遣其上京参加香格格招亲大会。其实斗官所以答允上京,目的是找三名北少爷——[千术北少爷]车载(傅声),[泡妞高手]真厉害(陈百祥) [神偷北少爷]时三手(汪禹)四人不打不相识好友, 以其合力对付仇家三眼道人(王龙威)Tou Kuan, a spoiled affluent kid, travels with pal Mai Song to Beijing to challenge 3 Masters to improve Kuan's status. Along the way, they contend with inept assassins hired by Kuan's uncle, who wants the family business and fortune.