A storm is brewing at Reddick, Boseman & Lockhart when revelations of past indiscretions involving a partner come to light. Right when she thought the world couldn't get any crazier, an incident at home pushes Diane to her breaking point. Meanwhile, Lucca is brought a new opportunity while Marissa teaches Maia to toughen up.

The FBI question Diane as part of a job background check on Kurt, leading to unexpected and serious consequences. The mayor of Chicago invites Adrian and Julius to join a 'think tank' tasked with figuring out how to spend funds that will address the "Kill All Lawyers" problem. Chaos ensues in the delivery room after Lucca goes into labor early.

While on his way to court with Maia and a witness, Jay is being arrested by the police. When Diana and Liz rush to help him out, they discover that it is an immigration issue and federal agents are about to deport him. Meanwhile, Adrian goes back to work.

Heated debates occur at the firm when Liz and Maia represent a well-known photographer, Ron Williams, suing a woman who provided an account of their relationship to a website. Jay continues to investigate possible suspects in Adrian’s shooting while Diane receives surprising news from her accountant.

Reddick, Boseman and Lockhart is left in disarray after a partner at the firm becomes the latest "Kill All Lawyers" victim by an unknown assailant. The Chicago police chief causes a stir when he goes after the firm's high profile clients Lemond Bishop and Colin Sweeney as potential suspects. Amidst the chaos, Colin is reminded of his true feelings for Lucca.

Reddick, Boseman and Lockhart represent an African-American undercover cop, Rashid Clarkson, who was left crippled after being shot by another Chicago police officer in the line of duty. The case's opposing counsel is legend Solomon Waltzer, whose tactics have the firm questioning the legitimacy of his evidence. Diane finds herself at a crossroads with both Kurt and Tully.

A Democratic National Committee consultant, Ruth Eastman, approaches Reddick, Boseman and Lockhart to develop a confidential impeachment strategy for the DNC against President Trump, leaving the firm's partners at odds. After an impromptu visit from Colin's mom, Lucca is left feeling suspicious of her motives. Maia is intrigued by Ruth's assistant, Carine.

Adrian becomes an overnight celebrity after his candid appearance on a cable news show goes viral. Lucca, who has yet to formally announce her pregnancy, worries about her future at the firm. Meanwhile, Adrian's newfound cable news fame grabs the attention of Chicago's top law firm and the jury of his latest case.

Adrian and Diane serve as outside counsel for a broadcast network planning to air a controversial segment that would derail the career of a beloved male movie star. Maia and Lucca have vastly different experiences while on separate ride-alongs with the Chicago Police Department.

Liz decides to represent her son's favorite teacher after she senses the school fired him for illegitimate reasons. Lucca enlists the help of Elsbeth Tascioni when an unanticipated lawsuit hits close to home. Despite the recent chemical scare, the firm throws a party to celebrate their new offices.