Kylen Davis

When a family is poisoned in their home, the team discover a connection to the Becks. Ruzek goes undercover to work for their business, and as he gets closer to Samantha, chilling information about her father comes to light.

An African-American cop shoots an unarmed white man, shaking a North Carolina town, the situation becomes more tense when the neglected murder of an African-American teen is brought to light.

As they await news of Halstead's fate, the team turn their attention to an illegal arms dealer; Atwater discovers his brother is in Chicago and could be tied to the case; Voight must deal with Halstead's shooter; Burgess makes her decision.

A dark, secret scam is uncovered when Intelligence busts a meth lab. They discover an internet scam involving children, adopted from foreign countries, that are being sold online.

Burgess and Ruzek's secret begins to have severe implications for their police work; a series of deadly acts of vandalism causes tensions to run high in the insular neighbourhood of Canaryville; Atwater tries to reach out to his brother.

When the son of an influential former officer is implicated in a murder, Moore pressures Voight to charge him quickly; the stakes are raised in Atwater's fight against the blue wall after patrol officers stop responding to his team's calls.