各有特长刑警一起对付国家级危机威胁。 田中哲司演在同事之中被认为总是冷静指挥的班长吉永光成,是原警视厅搜查一课的刑事,侦讯高手这样的人物。 野间口彻演原机动队爆炸物处理班的特搜班成员,冷言挖苦人的樫井勇辅,有卓越的嗅觉,有着被称作「共感觉」可以看见气味区分颜色的特殊能力持有者。 新木优子演在班上是万草之中一点红,原骇客的网路情报分析专家大山玲,装酷心中有阴影这样的角色。The Special Investigation Unit is a secret force of specialists in various fields. The unit is under the direct control of the head of the Tokyo Metropolitan Police Department Security Bureau. Its members include investigator Inami Akira who sustained serious trauma in a special mission during the time he was in the Self-Defence Forces: and Tamura Saburo who was ordered to transfer from the Public Security Department Foreign Affairs Division in the wake of some incident and was later picked out by the Special Investigation Unit. These men will find themselves confronting irregular cases that will shake up the country.