In the aftermath of a financial scam, lawyer Diane Lockhart is forced to start a new chapter in her life as she joins a prestigious law firm in Chicago.
Diane Lockhart is struggling to make sense of the world around her as an unfortunate event brings the firm together with the prospect of a new partner, especially with the increasing pressure on them.
A series of unforeseen twists force the lawyers at the firm to confront their own moral compromises, first when sexual assault allegations against a founding member are revealed, then when a racial pay disparity is exposed.
Diane Lockhart resumes handling various cases, while Reddick, Boseman, and Lockhart are trying to adapt to becoming a subsidiary of the powerful, multi-national law firm STR Laurie.
In season 5, when the firm loses two top lawyers, Diane has to figure out the future of the firm, after which new events unfold.
In season six, new developments unfold, including Liz being forced to accept Ri'Chard as her partner to help manage the employees, while Diane begins to see everything positively after her first therapy session.