绰号(🕕)“Laughing哥”的警(🐌)员梁笑棠(谢(xiè )天华 饰(shì ))成功完成卧底任务,并在CIB得到重任。但总(zǒng )(🎾)管Harry(刘(liú )(🌗)松仁(♑) 饰(😎))(🚤)和上(shàng )司Jodie(陈法(🎡)拉 饰),对他的操纵(zòng )者之死(🐖)有(yǒu )怀疑(📞),在(zài )调查(chá )中发现(xiàn )其(qí )中另(lìng )有隐情。在CIB招(zhāo )新(🔊)后,Laughing和Jodie因训练(liàn )理念不同,成 为一对欢喜冤家,互有胜(shèng )负,各不(bú )(👓)相(🙀)让。Harry在照顾患癌症的妻子(zǐ )(🕙)之(zhī )外,又(👺)要面对因(🎋)他坐牢(láo )二十年刚(gāng )出狱(🕯)的前(qián )女友袁(yuán )君岚(lán ),好在儿子Aidon舞技出众(zhòng )(➡),又(yòu )乐于助人,让他心安。为(wéi )了对(duì )抗义兴,Laughing培植跛CoMichael(黄宗泽 饰)(🔞)为线人,后者逐(zhú )渐在帮派(🖍)头(🔫)马(💣)辣姜(jiāng )与威利(lì )(⏳)争斗(🚽)中获得重用(🕕),并(👗)脱离了(🚻)Laughing的掌(🤼)控,与昔日律(🎴)师女友姚可可(🏸)(徐子珊(shān ) 饰)爱火(🐈)重燃,并(bìng )努力(🈂)上位。随着帮派坐(zuò )馆(⛅)莫一烈的回归(🛃),一场(chǎng )警匪(🚓)卧底(🐇)之争、(🔍)黑白人性缠(chán )斗愈演愈烈……(🐸)