『大(da)叔我要』介紹(shao):廉(lian)(lian)(lian)政公(gong)(gong)署收到報案(an)人廖雨萍(周秀(xiu)娜飾(shi)(shi))的(de)實名舉報,舉報正在坐(zuo)牢的(de)富二代(dai)曹(cao)元元(林峯飾(shi)(shi))涉嫌(xian)行(xing)賄監(jian)(jian)獄(yu)里的(de)監(jian)(jian)督沈濟全(quan)(譚耀(yao)文飾(shi)(shi))以及懲教員,首席調查(cha)主任陸志(zhi)廉(lian)(lian)(lian)(古(gu)天樂(le)飾(shi)(shi))決定深入虎(hu)穴,臥底獄(yu)中(zhong)。在監(jian)(jian)獄(yu)里,被陸志(zhi)廉(lian)(lian)(lian)送入監(jian)(jian)獄(yu)的(de)前警(jing)司黃文彬(林家棟飾(shi)(shi))以及曹(cao)元元兩(liang)大(da)幫派勢(shi)成水火(huo),陸志(zhi)廉(lian)(lian)(lian)趁機接近曹(cao)元元取(qu)得信任。同時(shi)監(jian)(jian)獄(yu)外的(de)廉(lian)(lian)(lian)政公(gong)(gong)署總(zong)調查(cha)主任程(cheng)德明(鄭嘉(jia)穎飾(shi)(shi))、國內反貪(tan)局行(xing)動(dong)處(chu)處(chu)長洪亮(丁海(hai)峰飾(shi)(shi))也陸港(gang)聯手,通力(li)合作,最終成功破獲貪(tan)腐行(xing)賄大(da)案(an)。