故事(shì )发(fā )生在清(🔨)朝康熙年间。逃(táo )难(nán )途(🐌)中，出身卑微的李(lǐ )卫（徐(🕰)峥饰）邂(🎺)逅(hòu )岳思(sī )盈（陈好(🛤)饰）姐弟，他们结伴来(lái )到(📿)江南。李卫(🎏)在客栈偷拿(📼)微服私访的(de )十三阿(ā )哥(gē )胤祥（(🛍)王辉饰）的宝剑，赶(gǎn )赴县令冯月清（孙宝光饰）所设(shè )法场，救(jiù )下一群因哄抢粮食即遭处决的(🚢)灾民，这一切(🥁)被尾随其后的胤(🖲)祥和胤(💱)禛（唐国强饰）看在眼中(zhōng )，对他大加赏(🤠)识(shí )，并(bìng )派他(👓)出任苏阳县令(lìng )。目不识(🥫)丁的李卫当(dāng )官(guān )(🤲)伊(yī )(🕙)始闹出不(👺)少笑话，但他(tā )凭(🐀)借机(jī )智与(🤖)歪(⚾)才，惩(chéng )治(zhì )了横(héng )行一方的恶(è )霸，苏阳(🛎)百(💍)姓(xìng )对他称赞有加。李(lǐ )(🌹)卫的功绩(🥋)传到胤禛(zhēn )耳(🌼)中(🚶)，此时正(zhèng )逢(😝)西北(🏒)战乱国库(kù )空虚(🤔)，李卫(wèi )又被任(📛)命为扬州知(zhī )府，负(♌)责查(chá )处当(🍽)地盐(yán )(🔞)商偷(tōu )税(shuì )漏税一并(🌱)惩处贪官。扬(💣)州(zhōu )赴(fù )任，与盐(🏓)商的初(🍁)次交锋让李卫知(📤)道了什么叫人(rén )外(wài )有人天(💅)外有天......