芝加哥警署

五岁的小女孩被枪杀，在情报组办案的同时，外界对警政改革的高度关注，造成了新的阻碍。

The team responds to the shooting of a 5-year-old girl and they must work the case while facing new obstacles that come from the heightened attention on police reform.

一位昔日警界重要人物的儿子牵涉命案。穆尔要求沃伊特尽速控告他，以免外界指责警局偏袒自己人。

The son of an influential former officer is implicated in a murder and Moore pressures Voight to charge him quickly so that the CPD isn't accused of preferential treatment.

鲁泽克和伯吉斯发现有个孩子独自走在街道中央。他们把她送回家以后，发现她全家人都被杀了。

Ruzek and Burgess discover a child walking alone in the middle of the street and when they take her home, they discover her entire family has been murdered.

一名警察遇害，最大的嫌疑落在对他心怀怨恨的人头上。

A cop is murdered and suspicion falls on someone who has been holding a grudge against the officer.

The team investigates a rash of car jackings and finds that the truth is more complicated than they realize. Burgess makes a discovery about a previous case that will change her life forever.

情报组调查多起劫车案，发现事实真相比他们想象中复杂得多。伯吉斯对一件旧案有了新发现，这将会永远改变她的一生。

霍斯泰德和鲁泽克设法渗透一个犯罪集团，但事实真相比他们知道的更复杂。情报组找人合作侦办一件命案，合作的对象令人跌破眼镜。

Halstead and Ruzek try to infiltrate a crime ring but the truth is more complicated than they realize. The team recruits an unlikely ally to help solve a murder.

在发生了一连串致命伏袭事件后，情报组展开卧底行动，调查一名为了扫除竞争对手而痛下杀手的新毒贩。

After a series of deadly ambushes, the team goes undercover to bring down a dangerous new drug dealer who is determined to push out the competition.

Ruzek and Atwater are tasked with making an arrest after a high-profile shooting.

震惊社会的枪击案发生后，鲁泽克和阿特沃特奉命逮捕嫌犯。

When a local business owner is gunned down in his shop, it becomes personal for Atwater, who patrolled the neighborhood as a young cop.

一家商店的老板被枪杀，年轻时在当地巡逻的阿特沃特无法置身事外

Ruzek’s father, Bob, goes missing and the team races to find him before it’s too late.

鲁泽克的父亲鲍伯失踪，情报组需要赶紧把他找回来。

有一户人家在健康查访时不知去向，可能与犯罪有关，海丽警探决心找到这对父母和他们的女儿。

A wellness check on a family reveals signs of foul play and Detective Hailey is determined to find the parents and young daughter.

情报组追查狡猾的连续强奸犯，沃伊特警长在追求正义的过程中，开始打破自己办案的旧习。

The team pursues a crafty serial rapist. Sergeant Voight finds himself resisting some old, familiar tendencies in his quest for justice.

The shocking murder of a young pregnant woman leads the team on a desperate hunt for the killer, revealing something even darker than expected.