主(🈯)人公(gōng )洪(hóng )三(👷)携母亲和好(hǎo )友齐林到上海投奔(bēn )(🌰)严华,卷入两大公(gōng )司(🤢)权利(lì )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(rén )(🌗)领袖(xiù )。洪三则凭借机智多次(🎩)在凶(xiōng )(🗄)险(🛍)的上(shàng )海(hǎi )滩化(huà )险为(✳)夷。洪三与(yǔ )忠义之士(shì )沈达义(🎫)结金兰(lán )(😚),与来(🙁)上海报父仇的林依依在斗智斗勇中成为莫逆,女扮(🌚)男装的林(⏯)依依爱上洪三(🦗)。洪(hóng )三接近富家女(nǚ )(🗞) 于(yú )梦竹(✋),于梦竹爱上洪三。严(🙀)华遇险,为共产党人梁(🤷)兴(xìng )义所救,加入共(😍)产党。林(lín )依(🤳)依为报仇铤而走险,洪三(sān )与(👣)其(🗳)奔走天涯。林依依遇(🍑)难(👊),洪三重(🐾)回(🦇)上海滩。在(zài )严华和梁兴义进步(bù )思想的感召下,洪(hóng )三放(🏒)弃(qì )来(💿)之不易(🈺)的“美好(hǎo )生活”,为护送梁兴(xìng )义离开上(shàng )海倾(🍽)其(qí )所(suǒ )有(🏴)甚至生(🔎)命。洪三逐渐懂得,共(🔥)产(chǎn )党带(dài )领的这条道路,才(cái )是他所想追求的远大前程。