When Sean Cahill brings Pearson Specter client Logan Sanders in to the SEC for questioning, Harvey tries to put an end to the Gillis Industries takeover. But when Mike continues to play hardball, Louis sees an opportunity to make a name for himself by saving the day. Meanwhile, Rachel must contend with the fallout of a moment of weakness.

Evan Smiths offers new evidence that nullifies the firm's victory against Liberty Rail. Harvey and Mike scramble to save the Liberty Rail case; D.A. Wolf comes after the firm; and Jessica and Malone try to adjust to their new circumstances.

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.

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.

Mike transitions to prison life while Harvey, Jessica, Louis, Donna and Rachel deal with the fallout of Mike’s plea deal and try to prevent what’s left of PSL from collapsing.

Harvey defends Sutter from Cahill. Mike's past threatens to derail his mission. Rachel and Jessica seek evidence to re-open a case. Louis woos Tara.

Rachel receives a letter that creates an unexpected issue for Harvey and Louis. Mike's mentorship of Oliver and Marissa gets put to the test. And Donna gets a surprise from the IT department.

Mike returns to Pearson Specter Litt as Harvey takes the reins. Louis manages the new class of associates, while Donna and Rachel find their places in the new world order.

Mike proposes a power move to boost business; Harvey's past causes complications; Rachel's father wants to join forces; Louis mentors Brian.

When Harvey and Zane can't stay on the sidelines, Donna does what's best for the firm.