SergeantVoighttriestofindoutwhoisbehindthemurderofJin,andcomeupwiththeunbelievablediscoveryandlearnedthatSergeantEdwinStillwellplayingadoublegamewiththeintentionofgettingoutonthesurfaceofthebigfishalongwithVoight.Inthemeantime,allmembersoftheintelligencedepartmentsreceivedeaththreatsfromanunknowngroupcalled"Shadow".AtseveralplacesinChicagoinafire,explosion,androbbery,forwhich"Shadow"takeresponsibility,bringingthecityintochaos.
精选短评:新来的那个男巡警啊,个人能力不错,但用俺们中国人的话说,就一扫把精啊,介绍队友工作,队友卷入谋杀案;和搭档巡逻,产生情感纠纷被换区;和新搭档巡逻,新搭档又挨枪子……