40年代，身手不凡(fán )的乡(xiāng )(🥇)下(📼)青年邱子洪来到上(shàng )海滩，途(🛍)中结(jié )识少(🤴)女姚小君。他找到(dào )(🐉)在武(🌰)馆(guǎn )一(🔬)起长大的何(hé )勇何瑶兄妹。子(zǐ )洪(🎏)在歌厅遇(yù )到上(shàng )海三大帮派的头(👑)子(🎩)，帮(🗄)助杜(dù )老(lǎo )五打败金九华，从此(cǐ )与(yǔ )(🏐)斧(🚥)头帮结怨(yuàn )。警察大队长康(kāng )正(🙁)宗为铲(chǎn )除三(sān )大帮派，当(🐖)上(🤷)局长，挑(tiāo )起了帮派争(zhēng )斗。子洪(🚨)跟(🛑)朋友(yǒu )们被搅入纷(🦗)争之(zhī )中(zhōng )(🌊)。三(🥎)大帮派被消灭，何(🐑)勇(yǒng )何瑶等(🤸)也相继死去。康接任了(⏰)局(jú )长职务。子洪此时才明白，想要称霸上海滩的是(🐀)康正(🚴)宗(🧣)。一阵(zhèn )乱枪响过，子(zǐ )洪倒在血泊中。