When two college students, Sam and Thea, meet Coles at a party, their mutual attraction is immediate, leading to a passionate and awkward night together, and the onset of an intensely charged bond. As they continue to push the sexual boundaries of their friendship, however, they are tested by Sam and Coles' incipient romance and Thea's increasing recklessness, until the relationship dissolves amid a cloud of fear, resentment and mistrust. Eight years later they reunite. An animator for a high-profile ad agency, Coles now lives with Claire, his girlfriend of five years. Thea is happily married to Miles, with whom she owns a flourishing restaurant. And Sam has just returned to Manhattan after working in London where she recently broke off her engagement. Yet upon reconnecting, the three are drawn back into the complicated dynamic that defined their relationship from the start and are forced to confront the true meaning of commitment and love.

　　该剧主要描述发生在旧金山的神秘谋杀案。一起因毒瘾而引发的谋杀案看似普通，但随后的警方调查、疑犯逮捕和庭审过程却引出更多秘密。旧金山警署命案侦探Terry Seagrave和Hildy Mulligan在承办该案过程中发现受害人与硅谷神童Erich Blunt存在某种可疑的关联。Blunt是一个狂妄自信的科技天才，年纪轻轻就已经取得非凡成就，目前担任一家高科技公司的首席执行官。对Blunt来说这无疑是个坏消息——因为他正准备让自己的公司上市。与此同时，一名软件工程师状告Blunt剽窃了他为一种革命性的全息系统撰写的程序代码。和Terry、Hildy一起办案的专案组成员包括：以哲学家自居的警察David Molk和警队总指挥Jim Koto。

　　Tom Kane（凯尔希·格兰莫）是“风城”芝加哥的市长，可以说他就是位于这座城市权力之网中心的那只大蜘蛛，这个网同时也是权力与进步达成的契约之网。

　　人们希望被领导，争端被解决，工作被分配，忠诚被回报，如果必须通过骗术与违背道德的方式才能达成这一切，Tom Kane觉得也未尝不可。只要任务完成了，人们便会另眼相看。

　　尽管他算是近几年来成绩斐然的一位市长，渐渐显现的老年痴呆症的魔爪却在将一切一点一点地从他身边剥离走，他不能相信自己的记忆力、最亲密的盟友、甚至是他自己。

　　他的妻子Meredith并不知道这些，他们的婚姻其实也是利益、权力趋向所造就的产物；他的顾问，Kitty O’Neil，一直对他有所怀疑但也不敢言语；他的政治顾问Ezra Stone，一个脾气不太好的耶鲁毕业生还依然蒙在鼓里。

　　只有Emma， 和Tom Kane闹僵的女儿，在一次偶然的机会下得知了父亲的这一秘密。这位顶级“老板”眼下正经历着最为艰难的时刻.....

A businessman heads to Cuba and gets caught caught up in an assassination conspiracy.

A dramatization inspired by the real-life events surrounding the recruitment and capture of Ahmed Ressam - aka the "Millennium Bomber". Ressam was convicted of smuggling a bomb into the United States as part of an Al Qaeda plot to blow up Los Angeles International Airport on New Year's Eve, 1999.