四个从小在走私黑帮中成长的男子，长大后结成了牢固的“四人帮”。但在后期发展过程中，有的爱上女人，有的被抓后选择背叛，四人先后入狱。出狱后，因为种种原因，有人先后身死，追查过程中终于发现真正的叛徒。

故事发生在一个令人伤心的大城市中，一宗宗黑帮交易、残酷的江湖惨案引出主人公飞虎精英的到来，逐步揭示出江湖中所隐藏的真相。他们带着正义的希望和伤痛，他们分别潜入黑帮中，两人是敌人也是朋友，更是生死之交……最后，两人能否拯救这个城市，能否让它重见天日呢……

Petty Officer Michael Davis (Jeremy Davis) is the newbie to SEAL Team VI, but after his first mission the young soldier is weathered beyond hid years. His first assignment as for the elite black ops squad is as Communications Officer for the micro ground assault team that enabled surgical aerial assaults of strategic targets in Iraq, priming allied forces for the what is now known as Operation Desert Storm. The honor of being part of the special forces unit is enriched by the fact that he is invited into the unit lead by the best, Master Chief Devon Mackefy (Ken Gamble).　　The team, having just returned from one mission, is called into duty once again, because “Mac is the best”. Feeling the pull of the call, and given no option by the powers that be, our heroes go into the thick of it with the usual disadvantages - tired, short by one man and in need of gearing up in the weapons department; all with their invisibility being paramount.　　The team is rounded out by Petty Officer Williams (Kristoffer Garrison), Petty Officer Sanchez (Neta De Paula) and Chief Petty Officer Roberts (Zach McGowan). The team’s only contact ii Iraqi is Jamal (Amol Shah), a Kurd who has lost his family to the war and now helps the U.S. in these isolated covert operations. Their sole mission mark aerial targets, avoid capture and stay alive for four days. But the enemy is in every direction. Tensions are high since Davis is untested in the field and Mac is distracted by a recent personal loss. All these complications threaten the success of the mission, as well as the team’s survival.

身怀绝技、武功高强的凯西·伯曼（斯科特·阿金 Scott Adkins 饰）即将和他最爱的女子奈美子（肘井美佳 饰）步入婚姻殿堂，并迎来属于他们的爱情结晶。某晚，凯西外出购物，而独自在家的奈美子却被入侵者残忍杀害。压抑不住心底的愤懑与悲伤，凯西放纵怒火的喷薄。在此之后，他洗却前尘，背着行囊来到故交中原（小杉健 饰）位于泰国的古贺道场修行，但是丧妻之痛令这个孔武男子无法控制自己的情绪，有如随时暴走的猛兽。某日，道场一位道友被人杀害，而凶手作案手法与杀害奈美子的凶手如出一辙。从中原口中得知，这一切可能正与当年和道场多有瓜葛、而如今成为金三角一代黑帮头目的五郎（菅田俊 饰）所为。　　背负着深仇大恨，凯西再度上路……

当外交手段失效，唯有不择手段。在新的一集里，著名嘻哈组合Naughty By Nature其中一员Treach主演探员尼尔肖恩，他的任务是设法阻止北韩恐怖份子得到游戏。但任务并非想象那么简单，肖恩为救其线人（花花公子模特儿李善喜），不惜以身犯险，最终被诬陷为杀人犯。成为通辑犯的肖恩，带着新丁搭档和神秘的线人，他不得不使出浑身解数，找遍韩国每寸地方，希望在恐怖份子破坏联合国和平高峰会之前，把他们一网打尽。

狼人和吸血鬼之间的大战还在继续。当麦克尔（斯科特•斯比德曼 Scott Speedman 饰）和西丽妮（凯特•贝金赛尔 Kate Beckinsale 饰）还在企图以自己薄弱的能力阻止这场大战时，阴谋家们的杰作又诞生了――狼人和吸血鬼融合的具有超强能力的种族――“血族”。马克思（托尼•库兰 Tony Curran 饰）便是便是这个种族的第二代。他杀死了父亲，夺取了密钥和西丽妮的记忆，救出了一个是狼人、一个是吸血鬼的被囚禁千年的孪生兄弟，企图一统狼人、吸血鬼和人类三大种族。　　麦克尔和西丽妮这对恋人为了爱，他们必须挫败马克思的阴谋、打败囚禁千年的孪生兄弟……