『第一副(fu)利導航k6』介紹:該劇講述(shu)了(le)在(zai)(zai)瑯琊閣學(xue)藝(yi)的蕭(xiao)平(ping)(ping)旌(jing)(jing)調查其(qi)兄長(chang)(chang)林(lin)軍副(fu)帥(shuai)蕭(xiao)平(ping)(ping)章(zhang)一案而牽扯到大(da)梁(liang)(liang)(liang)安危(wei)的故事。大(da)梁(liang)(liang)(liang)朝局(ju)安穩,但邊(bian)境(jing)(jing)戰火(huo)不斷。守(shou)護大(da)梁(liang)(liang)(liang)北境(jing)(jing)的長(chang)(chang)林(lin)軍屢(lv)獲軍功,威名赫赫。在(zai)(zai)一次北境(jing)(jing)交(jiao)戰中(zhong),內閣首輔荀白(bai)水(shui)暗中(zhong)斷掉前(qian)線補給,戰困中(zhong)長(chang)(chang)林(lin)軍副(fu)帥(shuai)蕭(xiao)平(ping)(ping)章(zhang)(黃曉明飾)身受重傷,在(zai)(zai)瑯琊閣學(xue)藝(yi)的弟弟蕭(xiao)平(ping)(ping)旌(jing)(jing)(劉昊然飾)聞訊下山查案。三十年前(qian),鄰國(guo)(guo)(guo)夜秦遭遇(yu)疫情,大(da)梁(liang)(liang)(liang)為自保封(feng)國(guo)(guo)(guo)道,濮(pu)陽(yang)纓(郭京飛(fei)飾)因滅國(guo)(guo)(guo)之(zhi)仇潛伏(fu)在(zai)(zai)大(da)梁(liang)(liang)(liang),并勾(gou)(gou)結瑯琊榜第一高手,東海國(guo)(guo)(guo)主墨(mo)(mo)淄侯,暗中(zhong)瓦解梁(liang)(liang)(liang)帝(di)勢力與長(chang)(chang)林(lin)府,兩(liang)人于(yu)京城(cheng)四處投毒(du),疫情迅速蔓延(yan)。濮(pu)陽(yang)纓設局(ju),使蕭(xiao)平(ping)(ping)旌(jing)(jing)與蕭(xiao)平(ping)(ping)章(zhang)先后中(zhong)毒(du)。此時北境(jing)(jing)急(ji)危(wei),蕭(xiao)平(ping)(ping)章(zhang)放棄救治,奔(ben)赴(fu)(fu)前(qian)線支(zhi)援后毒(du)發而亡。一年后,梁(liang)(liang)(liang)帝(di)駕崩,大(da)渝進(jin)犯大(da)梁(liang)(liang)(liang),荀白(bai)水(shui)與萊陽(yang)王(wang)蕭(xiao)元啟(qi)(吳(wu)昊宸飾)誘哄年幼梁(liang)(liang)(liang)帝(di)頒旨(zhi),禁邊(bian)境(jing)(jing)興兵(bing),蕭(xiao)平(ping)(ping)旌(jing)(jing)抗旨(zhi)出(chu)征擊潰大(da)渝,長(chang)(chang)林(lin)編制因此被廢除(chu)。蕭(xiao)元啟(qi)與墨(mo)(mo)淄侯暗中(zhong)勾(gou)(gou)結,賣(mai)國(guo)(guo)(guo)謀(mou)逆(ni)。蕭(xiao)平(ping)(ping)旌(jing)(jing)于(yu)危(wei)急(ji)之(zhi)中(zhong)起(qi)兵(bing)勤王(wang),奔(ben)赴(fu)(fu)沙(sha)場營救梁(liang)(liang)(liang)帝(di)。