主人公洪(hóng )三携母(mǔ )亲和好友齐林到(dào )上海(hǎi )投奔严华,卷入两大公司(sī )权利(🍥)斗争。严华此时(shí )是一名(míng )(🍖)码头(🏴)工人,他不畏强(qiáng )权(quán )被(👋)推举为(🎏)工人领(🏇)袖(xiù )。洪三则凭(píng )借(🐿)机智(zhì )多(👑)次在凶(🗄)险(xiǎn )的上(shàng )海滩(👁)化险为夷。洪三与忠义(🐖)之士沈达义结金兰,与来上海报父仇的林依依在(🐖)斗智斗勇中(zhōng )成为莫逆,女扮男装(zhuāng )的林依依(🖲)爱(ài )上(❔)洪(hóng )三。洪(hóng )三接(㊗)近富家(jiā )女 于梦(🔝)竹,于梦竹爱上洪三。严(🙀)华遇险,为共(gòng )产党(dǎng )人梁兴义(yì )所救(🚻),加入(⛳)共产党(dǎng )。林依依(yī )为报(🕐)仇(chóu )铤而走险(xiǎn ),洪(hóng )(🕯)三(sān )与其(🗳)奔走(🈁)天涯。林依(🏉)依遇难,洪三(sān )(🚗)重回(huí )上(shàng )海滩。在严华和梁兴义进步(bù )思想的感召下,洪(😝)三放弃来(💿)之(🎥)不易(🈺)的(🤔)“美好生活(huó )”,为护送(📸)梁兴(🔷)义离开上海(hǎi )倾(qīng )其所有(yǒu )(🏴)甚(shèn )(🚲)至(📐)生命。洪(hóng )三逐渐懂得,共产党带领的这条(tiáo )道路,才是(😳)他(tā )(👗)所想追(🚻)求的远大前(qián )程(⏺)。