Jessica's partnership with Darby is tested when he assigns Harvey a high-profile client who faces the loss of her company unless proven innocent. Mike works to reconcile with Harvey and to manage the fallout from his revelation to Rachel.
Louis offers Mike a case that could change his future at the firm. Also, Harvey and Jessica team up to bring down an old nemesis who complicates their case to keep Ava Hessington out of jail.
Cameron Dennis strikes back at Harvey by arresting one of his clients for murder. Meanwhile, Katrina Bennet and a British version of Harvey arrive to stir things up at the firm.
Harvey's defense of Ava hits a roadblock when the interests of her murder trial are at odds with Louis' work to thwart a hostile takeover of Hessington Oil by a rival businessman.
Amidst a lot of office wheelings and dealings, a bet between Harvey and Huntley moves Mike onto a new case, whereby he takes Rachel along as his own "Mike" to his "Harvey."
Cameron's continuing use of shady tactics on Ava's case brings up memories of why Harvey left the DA's office to work for Jessica. Mike looks back on what cost him his one chance at a Harvard degree.
Harvey clashes with Stephen over Ava's case. Meanwhile, things are still tense between Harvey and Jessica as they strategize how best to defend Ava. Louis enlists Rachel in his battle with Nigel over a broken contract...and heart.
As Ava Hessington's murder trial begins. Harvey, Mike and Jessica fight off betrayal from both inside the firm and out. Meanwhile, Louis and Donna seek to even the score with those who have done them wrong.
Trust issues are brought to the forefront as Harvey and Scottie battle again. Louis wants to handle the dissolution talks. Mike wants to move forward in his relationship with Rachel.
An old nemesis returns to complicate the Pearson Darby negotiations and put Harvey and Scottie on opposite sides once again. Meanwhile, Mike and Rachel find themselves under Jessica's scrutiny. Louis ends up in Sheila's crosshairs.
With Darby finally out, Harvey and Jessica look at bringing Scottie into the firm. Louis tries to figure out how Mike got into the firm without a Harvard file.
Harvey finally gets his chance to take on Elliott Stemple, a man who beat Harvey three times in moot court and has avoided him since. Meanwhile, Dana Scott picks a fight with Louis.
While Harvey and Mike have unpleasant work to do for one of their biggest clients, Louis faces a huge challenge and Rachel tries to collect on an old debt.