《飞虎之潜行极战》是由优酷与邵氏兄弟国际影业联手打造的警匪片，以香港飞虎队为主题，讲述了面对多宗香港以及跨国严重罪案，飞虎队员们将会与匪徒斗智斗勇的故事。爆破、枪击、警匪间斗智斗力、荷枪实弹的场面惊险刺激，酷帅的打斗激动人心。高家朗是英勇的飞虎队员，而高家俊则是O记高级督察，同时也是高家朗同父异母的弟弟，两人不仅在工作当中，情感上也是矛盾重重。性格迥异的两人从一开始互相看不顺眼，在查案的过程中逐渐冰释前嫌。

年輕時代，高逸泰接受警隊委派混入黑幫做臥底，黑幫頭目的女兒盧曼娜對他一見傾心。逸泰早已訂情於單純的李英蘭，但為了早日破案，他假意搭上曼娜，從此在幫派中扶搖直上。最終在一次黑幫廝殺中，逸泰除去曼娜的黑幫世家，曼娜生死不明。好兄弟聶宇航知道逸泰和曼娜的私情，以及二人的初生兒子高家朗。逸泰將家朗帶回家，英蘭亦為逸泰誕下一子高家俊。家朗血統中的原罪令他未能在父愛下成長，但家俊同樣沒有得到逸泰的溺愛，反而吃盡苦頭。兩個同父異母的兄弟，在成長過程中積累不少矛盾，並不約而同跟宇航發展出亦師亦父的緊密關係

在一個盛大的升職典禮上，官至高級警司的逸泰正歡天喜地迎接這個光榮時刻，卻未知已步入一個計劃了三十年的復仇大計中…

During a promotion ceremony for police officers, Senior Superintendent Ko Yat-tai is taken hostage. Seeing his father in danger, OCTB Senior Inspector Marcus Ko Ka-chun is unable to do anything. In a split second, Yat-tai’s eldest son Vincent Ko Ka-long, a member of the Flying Tigers, demonstrates his excellent marksmanship to save him, which unexpectedly acts as a trigger to bring what was buried in the Ko family back to light. A recent spate of murders of undercover cops, a surge of new drugs, and terrorist groups are a portent of a menacing future that Superintendent Lip Yu-hong relentlessly fights against. Meanwhile, caught in their own relationship dilemma, two brothers, Ka-long and Ka-chun, end up going their separate ways, turning into rivals...

ผู้กำกับลิปยูฮงต่อสู้อย่างไม่ลดละเพื่อจับกุมผู้บงการอาชญากร ในขณะเดียวกัน เมื่อตกอยู่ในภาวะที่กลืนไม่เข้าคายไม่ออกในความสัมพันธ์ของพวกเขาเอง พี่ชายสองคน กาหลงและกาจุนก็แยกทางกันและกลายเป็นคู่แข่งกัน

Flying Tiger xoay quanh cuộc chiến của đội phi hổ thuộc lực lượng cảnh sát Hồng Kông với những thế lực ngầm, những tay trùm xã hội đen sừng sỏ với sức ảnh hưởng mang tầm quốc tế cùng thế lực đen cực kỳ lớn. Ngoài ra, phim còn khai thác triệt để diễn biến tâm lý, mối quan hệ xung quanh của từng thành viên trong đội phi hổ gồm: 2 anh em cùng cha khác mẹ Hứa Trí Hào (Huỳnh Tông Trạch) và Hứa Trí Cường (Ngô Trác Hy), Trịnh Huệ Mai (Vương Mẫn Dịch)…