海洲市(🍅)公(gōng )安(👷)局长遭遇(yù )枪(qiāng )击昏迷不醒,原省(shěng )公(gōng )安(🕋)厅刑侦(🕸)处处长(zhǎng )田(🤢)丰临危受(shòu )命,空降海洲任(rèn )(🌰)代(🍖)理局长(zhǎng )之职(🥩),在(😧)副局(📿)长胡克艰和刑警队长赵梦楠配合下对冉(🔸)江(👑)案展(🤷)开全面调(diào )查。此时,神(shén )秘(mì )(🥄)杀手再次(cì )现身医(🛺)院,试(shì )图接近冉江。在(zài )调查杀手(🐶)的(🥀)过程中(😱),又一位(wèi )知名企(qǐ )业(📎)家遇害,俩家涉(shè )黑(🛑)KTV的领班(bān )杜大浩走入警方视线,成(📙)为最(✋)大嫌疑(🙌)人。同(🌞)时,几次大的扫黑行(háng )动(dòng )也(yě )因(⛏)泄密而失败,警局(🕙)内部(bù )潜伏着黑帮(🤳)卧底,警(🐀)察也收(shōu )到来自黑帮的重(chóng )要线报(bào )。一场关于卧(👊)底与反卧底的(😊)盘查在(🏻)警(jǐng )局和黑帮内部展开(kāi ),究(jiū )竟(🚶)谁是(shì )卧底(dǐ )?黑白之(zhī )争、正邪之战,又将何(hé )(⏲)去何从?