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.

While Teresa and Jarek set the stage for their case against Alderman Gibbons, their effort to clean up Chicago takes an unexpected turn when a deadlocked jury acquits a corrupt city official. Suspicious, the two mount an investigation, only to discover that jury tampering is just the tip of the iceberg.

Following a murder that appears to be a hate crime, Teresa risks tipping Gibbons off to her big-picture plan by boldly taking on the Chicago Police Department's corrupt "meritorious" promotion system. Meanwhile, Jarek is forced to face his own reality when Vonda receives an anonymous package that reveals more about the Wysocki family.