Harvey turns to a former colleague for help in proving the firm's case.

The war with Daniel may be over, but the battle has left Pearson Hardman vulnerable, and Harvey must protect the firm from a rival whose attack seems as personal as it is professional. Louis and Mike are forced to pay the price for previous actions.

Lines between the personal and the professional get blurred when Harvey and Stephen work together on Ava's case, and Mike invites Rachel to join him on a case that gets complicated when his secret falls in the line of fire -- with Rachel's parents.

Both Mike and Jessica lean on Harvey for support when things from their respective pasts throw them off their game.

Harvey and Mike find themselves on opposite sides of a takeover battle that threatens to turn into a knockdown, drag-out fight – a fight complicated by Rachel’s relationship with Mike. Meanwhile, Louis finds himself partnered with recent SEC defector Jeff Malone in defending Pearson Specter from disgraced DA Eric Woodall.

Rachel brings disturbing news while Mike is still reeling from the aftermath of the battle for Gillis Industries. Feeling Harvey is his only friend left, Mike makes a rash decision. Meanwhile, Jessica asks Louis to pick his own reward after his victory for the firm.

Harvard ethics professor Henry Gerard seeks Harvey's help with a case that requires a lack of ethics to win. Mike, meanwhile, does his best to not be spotted by the professor, whose class he never took; and Louis tries to wine and dine a socialite CEO.

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.

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.

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.

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.

Jessica and Rachel fight to save Leonard Bailey. Harvey and Louis try to keep clients from abandoning ship by wooing their oldest client.

Mike needs Harvey and Rachel's help to overcome an impossible obstacle, or his dream of becoming a real lawyer is over. Donna's new venture hits a snag. Louis tries to patch things up with Tara.

Harvey butts heads with his partners over a bold move. Mike pursues a pro bono case with the legal clinic. Donna's actions raise tough questions at the firm.

After their power move gets countered, Mike and Harvey end up with their backs are against the wall. Rachel worries about her father's clouded judgment. Louis helps Alex.

Harvey is forced into a difficult decision when the impossible is asked of him. Mike and Rachel try to make time to discuss their future. Louis struggles with the rules of his relationship.

The transition continued to cause headaches as Harvey and Donna get their first taste of how Samantha operates and Alex tries to impress Robert Zane.

An old foe backs the firm into a corner. Samantha and Alex try to broker a peace between clients.

Donna's relationship complicates a deal for Harvey and Alex. Samantha helps Louis get justice.

When Hardman comes looking for retribution, the firm rallies to Harvey's defense.

The firm faces the repercussions of its actions. Samantha enlists Katrina to help an old friend.

Mike helps Harvey overcome a personal loss and an attempt to take down Faye grows more complicated than what was originally anticipated.