主人公(gōng )洪三携母(🆓)亲和好友齐林(📒)到(dào )(🏽)上(🐌)海投奔严(🃏)华,卷入两大公(gōng )司(sī )权利斗争。严华(huá )此(🥈)时(shí )是(🛤)一名码头(tóu )工(🗼)人,他不畏强(📿)权被推举为工人(rén )领袖(xiù )。洪三(sān )则凭借机智(🔸)多次在凶险的上海滩(tān )化险为夷。洪三与忠义(🐖)之士沈达义(yì )结金兰(😚),与来(🙁)上海报父仇的林依(yī )依(yī )在斗智斗勇中成为(wéi )莫逆(nì ),女扮(bàn )男装的林(⏯)依(yī )依爱(🔢)上(shàng )(❔)洪三。洪三(🌊)接近(🥎)富(🥔)家女(nǚ ) 于梦(🔝)竹,于梦竹(🤠)爱上洪三。严华遇险(⛓),为共产党人梁兴义(🧤)所救,加(🕙)入共产(💠)党。林依依为报(🕐)仇铤而走险,洪三(sān )与其(qí )奔(🤘)走(zǒu )(🈁)天(tiān )(❕)涯。林依依遇难,洪(hóng )三(sān )重回上(shàng )海滩。在严华和梁兴义进(jìn )步思想(xiǎng )的感召下,洪(😝)三(sān )(🔈)放弃来之不易的“美好生活”,为护送梁兴义离开上海倾其(🏃)所有甚至(📐)生(shēng )命。洪(hóng )三逐渐懂得(dé ),共产党带(📞)领的这条道路,才(🕕)是(shì )他(👗)所(suǒ )想追(🚻)求的远(yuǎn )(🐂)大前程(⏺)。