米田正子（松岛菜菜子 饰）是一名在东京国税局资料调查课任职的精英调查官，她创立了新的“复杂国税事案处理室”，专门处理连主部门都难以着手的棘手逃税案件。她招募了一群能力卓越却性格独特、不求升迁的成员，共同对付各类恶意隐匿收入的逃税者。新部门成员各有怪癖，但在米田的带领下，他们运用超强的信息搜集能力与调查技巧，将一个又一个狡猾的逃税分子逼入绝境。剧情以爽快的正邪对决为主轴，展现税务调查官如何凭专业与坚持维护社会公平，让努力纳税的人得到应有的正义。
As Leo's replacement Thomas Chamberlain arrives Nikki investigates the murders of Rachel Freedman, shot in the head, and her little autistic son Nathan, who was poisoned. Nikki rejects policewoman Anne Burchett's theory that Rachel killed them both but is perturbed when an impostor, claiming to be Rachel's sister, visits the morgue. At the same time the disfigured corpse of Eva Liron is discovered, killed with the same poison as Nathan. She had been the nanny to French hot shot footballer Isaac Dreyfus and was planning to blackmail him over a sex tape of them both. Jewish Isaac is a controversial figure due to his anti-Muslim sentiments but he denies ant part in the murders. Then another victim, Isaac's agent Mousa, is discovered dead.
人气系列《日本统一》地上波新作！某夜，三名蒙面人入室行窃时意外遇到屋主归来，慌忙逃跑，却恰好被“侠和会”若头冰室莲司（本宫泰風 饰）和本部长田村悠人（山口祥行 饰）撞见。两人展开追捕，擒获一人，得知对方疑似被卷入黑市打工。冰室判断幕后是敌对势力“特龙”，决意展开清剿。任侠、黑势力与警方三方角力的全新战斗即将打响！
