『秘密教學(xue)65話子豪進入下(xia)拉』介紹:上(shang)(shang)海(hai)灘十里洋(yang)場,是無數人(ren)(ren)追夢的樂園(yuan)……天生神力的青年馬永(yong)貞(伍允龍(long)(long)(long) 飾)從家(jia)鄉(xiang)來到上(shang)(shang)海(hai)謀生,在當時占(zhan)有上(shang)(shang)海(hai)一半勢力范(fan)圍(wei)的老(lao)(lao)幫(bang)(bang)派斧頭幫(bang)(bang)治下(xia)謀得(de)一份苦工,豈料(liao)因同(tong)伴竊取斧頭幫(bang)(bang)的鴉片,在后者(zhe)發難之際與(yu)同(tong)住貧民區(qu)的老(lao)(lao)鐵(tie)(洪金寶 飾)將工友救下(xia),為(wei)(wei)了追蹤那批鴉片的下(xia)落,馬永(yong)貞與(yu)上(shang)(shang)海(hai)另(ling)一半勢力范(fan)圍(wei)的主人(ren)(ren)——新近崛起的龍(long)(long)(long)七(qi)(qi)(qi)(qi)(qi)(安志杰(jie) 飾)不(bu)(bu)打不(bu)(bu)相識,并因為(wei)(wei)受到斧頭幫(bang)(bang)排(pai)擠,不(bu)(bu)得(de)不(bu)(bu)與(yu)同(tong)伴們投奔(ben)龍(long)(long)(long)七(qi)(qi)(qi)(qi)(qi)。因秉持母親的教誨,馬永(yong)貞無意(yi)加入龍(long)(long)(long)七(qi)(qi)(qi)(qi)(qi)的幫(bang)(bang)會,但龍(long)(long)(long)七(qi)(qi)(qi)(qi)(qi)不(bu)(bu)以為(wei)(wei)意(yi),反與(yu)之結為(wei)(wei)知交(jiao)。不(bu)(bu)久,那批鴉片的真正主人(ren)(ren)——日本人(ren)(ren)為(wei)(wei)了介入上(shang)(shang)海(hai),利用(yong)斧頭幫(bang)(bang)和龍(long)(long)(long)七(qi)(qi)(qi)(qi)(qi)的矛(mao)盾(dun)欲置(zhi)龍(long)(long)(long)七(qi)(qi)(qi)(qi)(qi)與(yu)老(lao)(lao)鐵(tie)等人(ren)(ren)于死(si)地,馬永(yong)貞忍(ren)無可忍(ren),誓要復仇……