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.

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.

Diane is encouraged to "do something" after meeting the leader of a female resistance group whose aim is to sink POTUS' approval rating. Maia and Blum's plan for a plea deal goes awry when Assistant State's Attorney Spencer Zschau takes over the case. Lucca receives a surprising new divorce referral while Marissa helps Julius find a campaign manager to support his run for federal judgeship.

Blum is out for revenge when he represents a group of Reddick, Boseman & Lockhart's ex-clients who claim the firm overcharged them. When Lucca finds out she's a candidate for an open partner position, she begins to question her reputation within the firm. Meanwhile, Diane helps Kurt with a work project.

Reddick, Boseman & Lockhart attempt to adjust to their new landscape as a small subsidiary of STR Laurie, a huge multi-national law firm. Diane encounters a familiar face in court. Lucca is given an exciting, high-profile divorce case.

Diane and Marissa find themselves arguing at the Circuit 9 3/4 Court, led by the quirky "Judge" Hal Wackner. Meanwhile, Carmen Moyo proves herself to be an effective, yet underestimated, new associate.

As Diane encounters her first "therapy" session, she begins to see everything in a positive light. After agreeing to participate in a student project about Black female attorneys, Liz must find a way to prevent an unfair takedown of her reputation. Eli Gold returns to help Marissa in court.

While STR Laurie is investigated by the FBI, Liz and Ri'Chard attempt to take their clients. As they fight to extricate themselves from STR Laurie, Ri’chard and Liz must decide who is head of the firm. Meanwhile, Diane is forced to expose her PT-108 treatment.