故事紧接上一季结尾：夏威夷州长遭谋杀后，Steve McGarrett成了头号嫌疑人，被临时羁押在监狱里等候出庭受审。Danny突然带着能够洗清他罪名的证据前来探监。与此同时，Kono遭到停职检查的处分，内务调查部派人对她展开全面调查。Terry O'Quinn在本集中扮演McGarrett在海豹突击队受训时的指挥官Joe White；Richard T. Jones扮演新任夏威夷州长Sam Denning；William Sadler再次扮演McGarrett的父亲John McGarrett。

Steve McGarrett侦探（Alex O'Loughlin扮演）曾经是一位获得过荣誉勋章的海军军官，退役后当上了警察。为了调查父亲的谋杀案，他返回了家乡瓦胡岛（夏威夷群岛的主岛）。夏威夷州长认为Steve是个难得的人才，执意挽留他在岛上工作。她想让Steve组建一支专门负责调查重案的精英团队－－规矩由他来定，她在幕后提供支援。这支命名为「Five-0」（50）的团队不走过场，不玩花样，只要能抓住岛上最大的匪帮首领，他们就算是把天弄塌了也没事。
Steve很爽快地答应了这位女州长的要求并开始「招兵买马」。第一个加盟「50」重案组的是Danny Williams侦探（Scott Caan扮演），人们都管他叫「Danno」。他以前在新泽西警察局工作，最近才被转调到夏威夷警察局。他喜欢高楼林立的都市生活，对阳光、沙滩和延绵不断的海岸线没有多少兴趣。不过，为了让8岁的小女儿有个健康的成长环境，他发誓要保护这座小岛的安全。
随后加盟的是Chin Ho Kelly（Daniel Dae Kim扮演）。他以前在檀香山（夏威夷首府）警察局当警探，因为错误的腐败指控被贬到联邦安全巡逻队当巡防员。他曾经是McGarrett父亲的门徒。
Chin的表妹Kono（Grace Park扮演）在夏威夷土生土长，坚强好胜，性格有点像假小子。她刚刚从警察学校毕业，渴望在工作岗位上证明自己的能力，于是主动要求加盟「50」重案组。
在「50」重案组的帮助下，McGarrett发誓要了结父亲遇害的案子，让父亲得到安息。与此同时，他也将带领自己的战友扫清这座美丽岛屿上的一切邪恶，让夏威夷－－美国的第「50」个州－－永远是人间天堂。

Charming con man Neal Caffey escapes from a maximum-security prison, only to be recaptured by his nemesis, FBI Agent Peter Burke. With few options, Caffey agrees to help the bureau bring down other elusive criminals in exchange for his eventual freedom. But before long, Caffey finds himself playing a game of cat and mouse with those who want him back in prison or dead.

Reeling from the death of his girlfriend, Neal struggles to unlock the secret behind a mysterious music box and find Kate’s killer, even as his partnership with Peter begins to crumble.

Suave con man turned FBI consultant Neal Caffrey is racing to stay one step ahead of the feds even as he helps his partner, Agent Peter Burke, bring down some of the world's most clever criminals. The stakes are at an all-time high as Neal struggles to come to terms with his own checkered past, but will his greatest con cost him everything?

Facing the uncertain future of his partnership with FBI Agent Peter Burke, Neal sheds his tracking anklet and disappears into thin air. But the Feds aren't done with him and Neal is hardly ready for retirement. Back in action, Neal ponders the future as Season Four delves deeper into the stunning secrets of his mysterious past.

2012年3月14日CBS宣布续订第三季。

Mr. Finch (Michael Emerson), a mysterious billionaire, developed a computer program for the government that predicts terrorist threats to the US. It was designed as a means to prevent another 9/11-type disaster, but Finch discovered that it was also predicting many "irrelevant" (non-terrorist) crimes. The non-terrorist data is dumped to a separate database and deleted each night. Finch realized that a great many domestic crimes could also be prevented if that data could be used. Finch built a backdoor into the machine that allows him to retrieve a list of Social Security numbers of people who will be involved in those crimes in order of occurrence. Unable to investigate the data on his own, Finch hires John Reese (Jim Caviezel), a former Green Beret and CIA field officer who is presumed dead, to help stop the crimes from taking place. The world thinks that Finch, like Reese, is dead. Finch made the choice of only transmitting the Social Security Numbers of the persons of interest so that if the backdoor is discovered, the government would have no clue as to what the numbers mean or that Finch is still alive.

该剧讲述了一位“法律上已宣布死亡”的前CIA特工，受雇于一位神秘的亿万富翁，打自主正义牌，用私人力量来打击犯罪保护人民。
　　卡维泽所饰演的角色名叫Reese，他在秘密行动中所受的特殊培训得到了爱默生的角色Finch的注意。Finch是一名软件天才，他发明了一种可以使用模式识别即将行使暴力犯罪族群的程式。用这种国家最先进的监视技术，这两人游离于法律之外，用Reese娴熟的特工能力以及Finch无限的财富，揭开那神秘的犯罪嫌疑人，并在犯罪发生之前制止它。
　　Reese的行动受到了NYPD-纽约警局的关注，包括凶杀科侦探Carter，以及Fusco，一名Reese曾经利用过的警丵察。而Reese和Finch发现，在这个私人隐私被肆意暴露，每个人都被政府“老大哥”监视的时代，只要正确地利用信息、在正确的时间、发现正确的人，便可以制止犯罪，改变一切。
　　CBS于2012年3月14日宣布续订第二季。

$1.8 million in gold coins is missing, an elusive precious diamond is about to be found, and Neal Caffrey has a new handler – and a new love interest. But all is fair in love and crime, and the closer Neal gets to the mysterious Rebecca Lowe, the greater the danger for everyone in his life.

CBS台到目前为止续订了十八部剧集，其中包括《夏威夷特警 Hawaii Five-O》

该剧讲述了一位“法律上已宣布死亡”的前CIA特工，受雇于一位神秘的亿万富翁，打自主正义牌，用私人力量来打击犯罪保护人民。
卡维泽所饰演的角色名叫Reese，他在秘密行动中所受的特殊培训得到了爱默生的角色Finch的注意。Finch是一名软件天才，他发明了一种可以使用模式识别即将行使暴力犯罪族群的程式。用这种国家最先进的监视技术，这两人游离于法律之外，用Reese娴熟的特工能力以及Finch无限的财富，揭开那神秘的犯罪嫌疑人，并在犯罪发生之前制止它。
Reese的行动受到了NYPD-纽约警局的关注，包括凶杀科侦探Carter，以及Fusco，一名Reese曾经利用过的警丵察。而Reese和Finch发现，在这个私人隐私被肆意暴露，每个人都被政府“老大哥”监视的时代，只要正确地利用信息、在正确的时间、发现正确的人，便可以制止犯罪，改变一切。
CBS已续订第三季

CBS刚一口气续订3季度《生活大爆炸》之后，又大手笔地续订18部剧集：《NCIS》《NCIS: Los Angeles》《犯罪心理》《疑犯追踪》《夏威夷特警》《警察世家》《CSI》《傲骨贤妻》《基本演绎法》《破产女孩》《米勒一家》《好汉两个半》《肥肥与胖胖》《Mom》各续订一季度

《疑犯追踪》（Person of Interest）第四季将把焦点对准人工智能，该剧的两位主创乔纳森·诺兰（Jonathan Nolan）与克雷格·普拉格曼（Greg Plageman）对此感到兴奋不已。要知道在第三季的最后一集，《疑犯追踪》最初的故事前提基本已经不再成立。而第四季，观众将看到剧中主角们——芬奇（Finch），里瑟（Reese），肖（Shaw）和根（Root）进入了一个全新的世界——在避开Samaritan监视的前提下拯救无辜的“无关号码”。

The tension has never been greater as Neal Caffrey re-teams with FBI agent Peter Burke in their most ambitious sting operation yet — infiltrating a sophisticated gang of deadly thieves. With Elizabeth Burke pregnant, Neal desperate for his freedom, and amidst pressure from Mozzie for Neal to cut ties with the FBI, the scheme unfolds, culminating in the series’ most shocking plot twist of all.

Steve McGarrett侦探（Alex O"Loughlin扮演）曾经是一位获得过荣誉勋章的海军军官，退役后当上了警察。为了调查父亲的谋杀案，他返回了家乡瓦胡岛（夏威夷群岛的主岛）。夏威夷州长认为Steve是个难得的人才，执意挽留他在岛上工作。她想让Steve组建一支专门负责调查重案的精英团队－－规矩由他来定，她在幕后提供支援。这支命名为「Five-0」（50）的团队不走过场，不玩花样，只要能抓住岛上最大的匪帮首领，他们就算是把天弄塌了也没事。