Set 2 years after prior film "Bayside Shakedown 3: Set the Guys Loose," a major case occurs that has the potential to take down the entire police organization. For the next 3 days, Shunsaku Aoshima and his colleagues struggle to unravel the case...

After Detective Shunsaku Aoshima is promoted to section chief he has the daunting task of dealing with eight cases at the same time, which includes a murder case, bomb threat, and a bus hijacking. Complications also arise between Detective Aoshima and his juniors.

从美国堪萨斯州载誉归来的医生石川玄（石黑贤 饰）受聘进入天真楼医院，但映入眼帘的并非医生救死扶伤的场面，而是当班医生缺席失职、病患无人照顾的混乱场景。尤其不能让他忍受的是，天真楼的当家外科医生司马江太郎（织田裕二 饰）丝毫没有医者全力医治患者的责任心。司马决不在下班后继 续参与抢救工作，却可为了客观的报酬抢救议员的儿子；他和医疗器械商人关系暧昧，互通利益。最令石川气恼的，司马简直“视患者的生命如草芥”，在患者哪怕还有一丝生还希望时竟然放弃治疗。虽然司马医术高超，备受院方高层赞许，但这两个持这完全不同理念的医生仍然矛盾不断，在这一过程中，白衣天使外衣掩盖下的种种黑幕渐渐浮现出来……

A man arrives in the city upon news of a potential terrorist strike in Italy. He is Japanese foreign diplomat, Kosaku Kuroda, and he’s here under orders of his supervisor at the Foreign Ministry, Hiroshi Kataoka (Kiichi Nakai), to aid in the safeguarding of Japanese citizens. Kuroda’s main contacts at the Japanese embassy consist of Ambassador Kikuhara, Counselor Nishino, and fellow diplomatic envoys Haba and Tanimoto. All are busy preparing for the visit of Japanese Foreign Minister Kawagoe due to arrive for the high-profile G8 foreign minister’s meeting. Meanwhile, somewhere on the festively-lit streets of the city, a young Japanese girl has suddenly gone missing. Is it an abduction simply for ransom? Or could it be a prelude to terror?

1998年4月，从警察学校毕业的篠原夏美（内田有纪饰）被分配到湾岸署交通课交通课工作。这里是传说中的优秀刑警青岛俊作（织田裕二饰）工作过的地方。本以为能作为警察光荣工作的夏美，却发现湾岸署不过是一帮色咪咪的高层与如上班族般平凡的警察们。而带她上班的前辈，居然是有“新人杀手”之称的桑野冴子（渡辺えり子饰）。苦闷的夏美夜晚酒吧买醉，不想结识了犯罪嫌疑犯！为了找寻身为警察的意义，夏美决定，用自己的行动验证自己心中的真理。 《跳跃的大搜查线》系列电视剧特别篇第2部。

The movie takes place again in the fictional Wangan Station of the Tokyo Metropolitan Police Department the once empty space within Wangan's jurisdiction has become a popular tourist attraction. When a string of murders of company execs begins taking place, Aoshima jumps at the opportunity to pursue something other than his current case, which he finds less than inspiring. However the powers that be have other ideas, and Wangan again plays host to a special investigation team from headquarters. Aoshima's friend Superintendent Shinji Muroi, assigned by headquarters to assist Okita, is again powerless to help the local officers as decisions are made by the higher ups.

Aoshima, a police detective working in the Bayside Precinct, is continually frustrated by the hierarchy and red tape that plague the system. His friend Muroi is climbing the ladder of the police bureaucracy. Muroi has made a pact with Aoshima that while Aoshima looks after the streets, Muroi would make life easier for the cops on the beat. One day in Bayside, a series of events turns the small station upside down.

1998年10月，卧底假扮业务员一个月的刑警青岛俊作（织田裕二饰）回到的原来的岗位——警视厅湾岸警察署刑事课。本以为可以休息片刻，但新案件接踵而至。放火杀人未遂事件引起警方注意，押解嫌疑人的途中，小堇（深津绘里饰）等人在处理另一个事件的途中，让嫌疑人逃脱了，小堇因此被总部调查。青岛为了小堇，誓要逮捕犯人，还小堇青白。但此时，青岛与警视庁刑事部捜査一课管理官室井慎次（柳叶敏郎）的信赖关系却出现了裂痕。高层的跟踪调查，嫌疑犯的不知所踪，青岛陷入了前所未有的危机之中。 《跳跃的大搜查线》系列电视剧特别篇第3部。

1997年12月27日，警视厅湾岸警察署全体在新年前夕依然繁忙的工作着，当然，除了无所事事的几位高层。是夜，商店街发生了绑架事件，突然从人群中冲出一个青年，轻轻松松将绑匪制伏。原来是传说中的青岛俊作（织田裕二饰）刑警回来了！因事件调离的青岛在新年之前调回湾岸署，但各个课室都不愿意接收这位爱惹麻烦的问题警察。从警务课、交通课、生活课，各个课长都像踢皮球一样不想青岛来工作。但青岛却乐在其中，在工作中，细心的青岛又发现了强盗犯罪事件的线索，犯人凶残似乎威胁到了警察署内部！1997年的最后几天，注定因为青岛俊作的努力工作而不平凡！ 《跳跃的大搜查》系列电视剧特别篇第1部。

原本是上班族的青岛俊作（织田裕二饰）突然对一成不变的上班族生活感到厌倦，而参加了国家公务员考试，成为了一名警察。幻想着像影视剧中威风工作的青岛，却在第一天上班就碰了壁：出现紧急杀人事件，女同事小堇（深津绘里饰）却忙着审问小偷；想要开警车，却发现要课长、局长层层批示才能给车钥匙；来到案发现场，却因为案发现场在辖区管辖范围街对面，而无法插手。青岛俊作对这样的工作感到失望，还好有老警察和久先生(碇矢长介饰）鼓励青岛。青岛决定从小案件开始做起，不想凭借他出色的洞察力，阴差阳错地破获了一个又一个惊天大案。融合了上班族生活与侦察案件的《跳跃的大搜查线》故事，搞笑与紧张相互推动的奇妙剧集在此呈现。