Louis uses his new leverage to become a name partner, rub Jessica and Harvey's noses in it, and make Mike's life a living Hell until he breaks his will and he resigns.
As Harvey takes on Professor Gerard as a client in a bribery investigation and discovers that he may have committed an ethics violation, Louis makes a catastrophic mistake with his first client as name partner.
As Harvey helps Mike and Louis settle their differences on a road trip to see a client, Harvey flashes back six years to his initial rift with Louis, while Mike flashes back to his first encounter with the firm.
Harvey finds out that Donna may have broken the law to help Mike get a document in the whistle-blower case, but he may not be able to save her. Meanwhile, Jessica tries to figure out her next step in her relationship with Jeff.
Sean Cahill comes to Harvey asking for one more chance to take a shot at Charles Forstman, and Donna is left with a tough decision after Louis' secretary Norma dies.
Mike and Rachel's engagement is put on the back burner as Donna leaves Harvey to work for Louis. Harvey is in denial and is confident she will return, but will he be able to handle it when he discovers she's not bluffing?
Jessica thinks that Harvey is putting out his "Donna anger" on Louis, as an ambitious senior partner tries to take on Harvey's salary. Rachel's dad insists that Mike and Rachel sign a prenup.
Mike teams up with his future father-in-law after Jessica says no to his case. Meanwhile, Harvey uses Charles Barkley to retaliate against Jack Soloff, but the fight and another confrontation with Donna triggers another anxiety attack.
Louis's sister wants to get a divorce, without getting her brother involved. Harvey takes her case. Zane & Mike are having some major disagreements on their case.
Harvey's rival claims to be a changed man; Harvey's sessions with Dr. Agard continue; Jessica asks Louis to make things right between himself and Harvey.
Mike teams up with Jack Soloff to co-counsel a case; Esther Litt returns to solve a problem; Donna and Harvey work on their friendship. Louis get into a fight with Harvey
Harvey confesses and apologizes to Louis for punching him, but will it be enough to keep him from getting revenge? Mike's promotion goes through, but the opponent in his first case as partner knows his secret.
Jack Soloff initiates Daniel Hardman's power play to get back in the firm and take away Harvey's clients. Louis tries to find the dirt Hardman has on Soloff. Rachel discovers that her mom's big wedding plans could reveal Mike's secret.
Hardman prepares his takeover of the firm, Jessica appears to be on her way out, and Harvey is nowhere to be found. Meanwhile, Mike turns to the church to come up with a solution for his dilemma with Rachel.