『日本在(zai)線黃(huang)色』介(jie)紹:主人(ren)公洪(hong)(hong)(hong)三(san)(san)攜母親和(he)好(hao)友齊(qi)林(lin)到上(shang)(shang)海投(tou)奔嚴(yan)(yan)華(hua)(hua),卷入兩大(da)公司(si)權利斗(dou)爭(zheng)。嚴(yan)(yan)華(hua)(hua)此時是一名碼(ma)頭工人(ren),他不(bu)畏強權被推舉為工人(ren)領(ling)袖(xiu)。洪(hong)(hong)(hong)三(san)(san)則憑借機智多次在(zai)兇(xiong)險(xian)(xian)的(de)(de)上(shang)(shang)海灘(tan)化險(xian)(xian)為夷(yi)。洪(hong)(hong)(hong)三(san)(san)與忠義之(zhi)士沈達義結金蘭,與來上(shang)(shang)海報父仇(chou)的(de)(de)林(lin)依(yi)依(yi)在(zai)斗(dou)智斗(dou)勇中成為莫(mo)逆,女扮(ban)男裝的(de)(de)林(lin)依(yi)依(yi)愛(ai)上(shang)(shang)洪(hong)(hong)(hong)三(san)(san)。洪(hong)(hong)(hong)三(san)(san)接(jie)近富家女于(yu)夢竹,于(yu)夢竹愛(ai)上(shang)(shang)洪(hong)(hong)(hong)三(san)(san)。嚴(yan)(yan)華(hua)(hua)遇險(xian)(xian),為共產(chan)(chan)黨人(ren)梁興義所(suo)救,加入共產(chan)(chan)黨。林(lin)依(yi)依(yi)為報仇(chou)鋌而走險(xian)(xian),洪(hong)(hong)(hong)三(san)(san)與其奔走天涯。林(lin)依(yi)依(yi)遇難,洪(hong)(hong)(hong)三(san)(san)重回(hui)上(shang)(shang)海灘(tan)。在(zai)嚴(yan)(yan)華(hua)(hua)和(he)梁興義進(jin)步思想的(de)(de)感召下,洪(hong)(hong)(hong)三(san)(san)放(fang)棄來之(zhi)不(bu)易(yi)的(de)(de)“美好(hao)生活”,為護送梁興義離開上(shang)(shang)海傾其所(suo)有甚至(zhi)生命。洪(hong)(hong)(hong)三(san)(san)逐漸懂得,共產(chan)(chan)黨帶領(ling)的(de)(de)這條道路,才是他所(suo)想追求的(de)(de)遠大(da)前程。