马德里1987

　　由于杏（平手友梨奈 饰）转往美国的法律事务所，藏前（室毅 饰）失去了负责照看的律师，因此被所长暗示即将终止契约。刚好此时，他得知人气“艺能型律师”樋口新（木南晴夏 饰）正准备从事务所独立开业。藏前随即亲自上门请求：“请务必让我在您手下工作。”在被爽快答应的当场，他慌忙签了文件，却不知道这正是“地狱的开端”。

　　Kyohei Aizawa, an assassin for a covert non-governmental espionage group in Japan called "SEEK", is grieving over the loss of his girlfriend from a tragic plane accident. The leader of "SEEK",Ryo Mikumo, contacts him for an emergency mission; save a fellow agent, recover a new highly explosive liquid called "RDX@", stop a ruthless Yakuza leader, Sojiro Kotsuki, and his gang before they take over Japan. Although the Ninjas were thought to have disappeared... the new breed of assassins live on helping to protect Japan and all that is right; the Ninjas are coming soon.

 故事发生在抗战时期的上海。天龙会首领肖洁荣（谈鹏飞 饰）委婉推辞日本陆军总部要其出任亲日同盟会长职务，隐退江湖。冷亦啸（周里京 饰）号称天龙会第一枪手，他抵制日本人的倒行逆施，暗中与肖洁荣的独生女肖岚（高颖 饰）相好。董浩然（何麟 饰）觊觎会长职位，又贪肖岚美色，他唆使肖洁荣把冷亦啸从天龙会中逐出。不久，肖岚委身董浩然，心灰意冷的冷亦啸在记者陈丽娜（潘婕 饰）推荐下，为他人做私人保镖。肖洁荣悔不该当初赶走冷亦啸，差肖岚相请遭拒。肖洁荣日后遭杀害，冷亦啸中伏击幸遇陈丽娜相救，他在激战中打死董浩然。在日本人为庆祝“螳螂计划”获得成功时，冷亦啸幽灵般出现......