主人公洪三(👷)携母亲(qīn )和好友齐林到上海(🍩)投奔严华,卷入(rù )两大公司(🤢)权利斗争(🔧)。严华此时(shí )是一名码头工人,他不畏(wèi )强权被推举为(🎏)工人(🌗)领袖。洪(😎)三则凭(⚫)借(jiè )机智多次在凶(xiōng )(🗄)险的上海(hǎi )滩化险(xiǎn )(💆)为夷。洪三与(🏐)忠义(🐖)之士沈达义(yì )结金(jīn )兰(😚),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(zhuāng )的林依(yī )依爱(ài )上(❔)洪三。洪三接近富家女(🗞) 于梦竹(zhú ),于梦竹爱上洪(hóng )三(㊙)。严华遇(💪)险(xiǎn ),为共产党人梁兴(xìng )义所(suǒ )救,加入共产党。林(lín )依依为报仇铤而走险(🤖),洪三与其奔走天(tiān )涯。林依依(yī )遇难,洪(💍)三(sān )重回上(shàng )(😊)海滩。在严(yán )(🌹)华(huá )和梁兴义进步(bù )思(💅)想(xiǎng )的感召下,洪(😝)三放弃来(lái )之不(bú )易的“美好生活”,为(wéi )护(💏)送梁兴义离(♌)开上(shàng )海倾其所(suǒ )有(yǒu )甚(shèn )至(📐)生(🔎)命。洪(hóng )三(sān )逐(🐖)渐懂得,共产(chǎn )党(dǎng )(🌸)带领的这(zhè )条道(🍁)路(🔲),才(cái )是(😳)他所想追求(qiú )的远(🐂)大前程。