海(hǎi )洲市公安局(jú )(🔨)长遭遇枪击昏(📼)迷不醒(🐌),原(yuán )(🔼)省(🌰)公安厅刑侦处处长田丰临危(🎺)受命(mìng ),空降海洲任(rèn )代(🍖)理局长之(🐮)职,在副局(jú )长胡克艰(jiān )和刑(❣)警(🌗)队长赵梦楠配合(hé )下(🐿)对冉江案展开全(🛍)面调查。此时(shí ),神秘杀(🛹)手再次现身医(yī )院,试图接近冉江。在调查(chá )杀手的过程中,又一(yī )位知名企业家(jiā )遇害(hài ),俩(🌚)家涉黑KTV的领班杜大浩(hào )走入警(🥎)方(fāng )视(💻)线,成为最大嫌疑人(🤠)。同(🌞)时,几次(🙀)大(🙉)的扫黑行动(🈴)也因(yīn )(⛏)泄密而(ér )失败(bài ),警局内部潜(💠)伏着(zhe )黑帮(bāng )卧底(dǐ ),警(jǐng )察也(yě )(🚴)收到来自(zì )黑(🌮)帮的重要线(xiàn )报。一场关(guān )(🥊)于(yú )卧底(dǐ )与反卧底(dǐ )(🦇)的盘(pán )查在警(jǐng )局和黑帮内部(bù )展开(🌪),究(🌼)竟谁是卧底(💯)?黑白(🏒)之(🙎)争(💿)、正邪之战(zhàn ),又将何去何从?