主(🈯)人公(gōng )洪三(sān )(👷)携母(mǔ )亲(⛲)和好(🐽)友齐林到(dào )上海(hǎi )投奔严华,卷入(rù )两大公(gōng )司权利斗争。严华此时是(shì )(🛤)一名码(🔬)头工(gōng )人(rén ),他不畏强权被(bèi )推举(jǔ )为(🎏)工人领袖。洪(😎)三则凭借(jiè )(🐿)机(🕔)智多次在凶(xiōng )(🗄)险(xiǎn )的上(🕖)海滩化险为夷。洪三与忠义(🐖)之(zhī )士沈达义结金兰,与(✖)来(lái )(🙁)上海报父仇的林依(🤯)依在斗智斗(dòu )勇(yǒng )中(🚢)成为莫逆,女扮男装的林(⏯)依依爱(🔢)上洪三。洪三接(jiē )近(jìn )富(fù )家(jiā )女 于梦竹,于(yú )梦(mèng )(🙌)竹爱上洪三。严华遇险,为共产党人梁(🤷)兴义所救,加入(rù )共产党。林依(yī )依为(wéi )报仇铤(dìng )(🧟)而走(🧣)险(🤖),洪三与其奔(🤘)走天涯。林(lín )依依遇(🍑)难,洪(💍)三重(chóng )(🐾)回上海(🈸)滩。在(zài )严华(⛏)和梁(liáng )兴(xìng )义(yì )进步思想的感召(zhào )下,洪(hóng )三放弃来之(🎥)不易的“美(měi )好生活”,为(wéi )护送(sòng )(📸)梁兴(xìng )义离(♌)开上海倾其所有甚(🚲)至生命。洪(hóng )三逐渐(jiàn )(🆙)懂得,共产党带领的这条道路(🔲),才(🕕)是他所(🎦)想(📤)追求的远大前(qián )程。