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.
Harvey steps outside his usual area of expertise, in order to take a case from a client who has a special tie to the firm. Mike and Zane work their class-action case together, but Mike learns they have different ideas about what constitutes a win - for themselves, and for their clients. And Donna counsels Louis on the best way to settle a feud.
Harvey faces old rival Travis Tanner, who claims to be a changed man, in a case. Harvey's sessions with Agard reveal the influence his past has on his present. Jessica tasks Louis to fix things with Harvey, but the plan may make an enemy of Jack.
Harvey reels from Dr. Agard's revelation about the root of his panic attacks and has to make a tough decision in a case that touches a nerve. Mike and Louis take over responsibility for Harvey's oldest client. Donna tries to make Rachel's dream wedding possible.
Mike teams with Jack Soloff on a case. Esther Litt returns to P.S.L. in hopes of discreetly solving a problem. Donna and Harvey try to return their friendship to normal.
Jessica does damage control in the wake of Harvey punching Louis, just as Jack Soloff and Daniel Hardman are looking for weaknesses to exploit. Meanwhile, Donna counsels both men on how to rectify their issues. And Mike must find a way to turn down his recently announced promotion without raising suspicion - while he and Rachel combat an opposing attorney who holds the key to uncovering his secret.
Rachel and her mother, Laura Zane, plan for Rachel's dream wedding, but Rachel fears the event may reveal Mike's secret. Meanwhile Daniel Hardman and Jack Soloff make their move against Jessica and the partners, as Harvey and Mike tangle with Hardman's mysterious backer, and Louis tries to find Jack's Achilles heel.
Jessica and Louis attempt to rally the partners to prevent the takeover attempt by Hardman and Soloff. Mike and Harvey both have to deal with demons from the past as they make potentially life-altering decisions.
Jessica and Harvey have to come up with a defense, even though Mike is guilty. Rachel must come to terms with her family's reaction to the news that her fiancé is not the person he claimed to be - and that he could soon be in prison.
Mike and Louis must identify an anonymous tipster in order to diffuse a damning piece of evidence. Gibbs isn't just after Mike, she's set her sights on Jessica and Harvey as well.
With time running out before Mike's case goes to trial, Harvey and Mike are at odds over their strategy, and just what lengths they'll go to in order to defeat Gibbs.
Time is running out before the trial and Mike wants to represent himself. Harvey wants lead and challenges Mike to a showdown. Louis attempts to get Sheila out of the picture for good.