电影北少林描述了中国抗日战争时期武林人仕与日本侵略者的争斗。

讲述在日本京都，忽然出现一怪客李君强（王羽 饰），常招惹当地的地痞流氓，他的目的想借此引出黑社会的幕后老板，调查其父亲被迫害的真相，由于他武功高强，被幕后老板清水昭文赏识重用，为取得清水的信任，李不惜用苦肉计，咋了好兄弟刘汉民的饭馆，当刘知道真相后，毅然进入了另一黑帮进行调查，经过调查，他们知道李父是被九指一郎骗去所有产业自杀而死，产业为黑老大山本俊彦（田丰 饰）收买，李继续追查。

海员王海龙因误杀一名日本水手，潜上一艘开赴日本的船只，途中发现这是一艘走私船。船将靠岸，龙被发现，一场激战后，龙为私枭胁迫，捉他向后台老板金毛皇帝报讯，后龙趁机逃跑。龙逃脱后无处容身，偶到一餐馆，老板资助他寻找表兄小李，后龙住于李家。某次，龙在散步时勇救被调戏的淑子，双双堕入爱河。调戏淑子的正是金毛手下，遂向金毛报告。淑子之父高品探长得线报，知道金毛将接一批私货，准备一举消灭歹徒。淑子告诉龙喜讯，并租艇游湖，期间龙被追杀，龙终击败歹徒，后急返。由于精力耗费过巨，龙昏倒淑子家，高品返家，淑子将龙遭遇和盘托出。后小李被金毛帮杀害，龙悲愤交集，直捣金毛帮巢穴。危急间，高品率众而至，将全部歹徒逮捕……

A young boy witnesses his mother’s cheating ways and, after the death of his sick father, grows to despise her. When he’s adopted by another family, the road to reconciliation proves achingly difficult.

Cheng is a young Chinese mainlander who moves in with his expatriate cousins to work at an ice factory in Thailand. He does this with a family promise never to get involved in any fights. However, when members of his family begin disappearing after meeting the management of the factory, the resulting mystery and pressures force him to break that vow and take on the villainy of the Big Boss.

Shih Hai-tung a swordsman seeks revenge for his father's murder knowing that the Golden Gate Sect were responsible. He had killed two Heavenly Dragon Association gangsters creating a significant amount of hostility between the two groups before they meet each other head on.