主人(rén )公(🍅)洪三携(🔨)母(mǔ )亲和好(🐽)友(🥇)齐林(📒)到上海投奔严华,卷入两大(dà )公司权利斗(🎺)争。严华(huá )此时是一(🌰)名码头工人(rén )(🐮),他不(bú )畏强权被推举为工人领袖。洪三则凭(píng )借(🐿)机智(zhì )多次在凶(xiōng )险的上海滩(👁)化险为(✳)夷。洪三(sān )与忠义之士沈达义结(jié )金(jīn )兰,与来上海(hǎi )报父仇的林依依在(🐖)斗智(zhì )(🔊)斗勇(⏺)中成为莫(🧚)逆,女扮男装的(🛑)林(lín )依(😞)依爱上(shàng )洪三。洪(hóng )三接近(jìn )富(fù )(🥔)家女 于梦竹,于梦竹爱上(shàng )洪三。严(yán )华遇险(⛓),为共产党(⛏)人梁(liáng )兴(👃)义所(suǒ )救,加(jiā )入共产党。林(🏯)依(yī )依为(🥕)报仇铤而(🚴)走(🧣)险,洪(hóng )三与其奔(bēn )走天涯。林依依遇难,洪三重回上海滩。在(zài )(🐛)严(🌹)华和梁(liáng )兴义进步(bù )(🌪)思想(🌼)的感(💹)召下(🐩),洪三放弃来之不(🐡)易的“美好生活”,为(wéi )护(hù )送梁兴(xìng )义(yì )离开(💸)上海倾其所(suǒ )有(yǒu )甚(shèn )(🚲)至生命。洪(hóng )(🌱)三逐渐懂得(dé )(🔫),共产(chǎn )党带领(⏳)的这条(🎐)道路(🔲),才是他所想追求的远大前程。