Sam Derence

Casey's conscience gets put through the wringer when he visits his mother in prison. Cruz shares a secret, and Pete fills in for Shay in the ambulance crew.

When five merchants are gunned down in a restaurant in Lincoln Park, relentless press coverage prompts the embattled mayor to blame the city's rising crime problem on Superintendent Colvin, who, in turn, unleashes Jarek and Caleb to catch the killers in hopes of restoring her credibility as a competent leader. Meanwhile, Isaac and Vonda are forced to revisit a past domestic violence case.

An executive at a consulting firm hires the team when she is overlooked for a promotion, and Ross wants to declare a truce with Claire.