介绍：Sergeant Voight tries to find out who is behind the murder of Jin, and come up with the unbelievable discovery and learned that Sergeant Edwin Stillwell playing a double game with the intention of getting out on the surface of the big fish along with Voight. In the meantime, all members of the intelligence departments receive death threats from an unknown group called Shadow. At several places in Chicago in a fire, explosion, and robbery, for which Shadow take responsibility, bringing the city into chaos.

介绍：《芝加哥警署》（Chicago P.D.）里哪位警官需要医生？因为这里正好有一个医生的家属！　　据TVLine网站独家报道，《无耻家庭》（Shameless）男星尼克·戈尔弗斯（Nick Gehlfuss）将出演《芝加哥警署》，扮演杰·霍尔斯特德（Jay Halstead）的哥哥瑞恩·霍尔斯特德（Ryan Halstead），并将主演《芝加哥烈焰》（Chicago Fire）计划中的衍生剧《芝加哥医院》（暂译 Chicago Med）　　瑞恩这个循环角色“是个花花公子，更是位事业有成的医生。但总是逃避责任，”制片人马特·奥尔林斯特德（Matt Olmstead）表示。“情况一旦变得复杂，他就消失了。剧中的他则正处于不得不开始认真工作，在芝加哥寻找真实人生的时刻。”　　霍尔斯特德兄弟俩终于团聚，“他们都很开心见到彼此，”奥尔林斯特德说。“瑞恩此番来到芝加哥并不是为了投奔杰，而是来找杰帮忙处理一些事情。”　　此外，戈尔弗斯也将出现在《芝加哥烈焰》中，为衍生剧做铺垫。

介绍：When Chicago Fire showrunner Matt Olmstead told Lauren German that hercharacter was going to be killed off the hit NBC drama, there was one silver lining. She's not going to miss the Chicago winters, and she even joked about that, he tells www. xiguatv8.com TVGuide.com. However, it remains to be seen if the show's fiercely loyal fan base will be able to take the news as easily.