主人公洪三(👷)携母亲和好(🐽)友齐(qí )林到(🏽)上(🐌)海投奔严华(huá ),卷入两(liǎng )大(dà )公(gōng )司(🤢)权利斗(🎺)争。严华此时是一(yī )(🌰)名码头工人,他不畏强权被推(⏬)举(🎲)为工(gōng )人领袖。洪(hóng )三则凭(⚫)借机智(zhì )多次在(zài )(🤷)凶险(xiǎn )的上海滩化(huà )险为夷。洪三与忠义之(🕌)士沈达义结金(jīn )兰,与来(🙁)上海报父(fù )(🚑)仇的林依依在斗智斗勇中(zhōng )成为莫逆,女扮(🌚)男装的林依(yī )依爱上洪(💱)三。洪(hóng )三接(㊗)近富家(jiā )女(nǚ ) 于(📙)梦(mèng )竹,于梦竹(zhú )爱上洪三。严华(huá )遇(yù )险(xiǎn ),为共产党人(🥫)梁兴(👃)义所救,加入(⛳)共(gòng )产党。林(🏯)依(🤳)依为报(bào )仇铤而走险,洪三(sān )与其奔(🤘)走天涯。林依(🏉)依遇难,洪(hóng )三重(chóng )回上(shàng )(😊)海(🈸)滩。在严华(huá )(⛏)和梁兴义(yì )进步思想(🌼)的感(gǎn )召下,洪三放弃来(💿)之不易的(de )“美好生(shēng )活”,为护送梁(liáng )兴(🔷)义离开上海倾(🍽)其所有(🏴)甚(🚲)至生(shēng )(🔎)命。洪(🌱)三逐(zhú )渐懂(dǒng )得(🔫),共产党带领的这条道路(🔲),才是他(👗)所想(xiǎng )追求(qiú )的远大(dà )前程。