Mike has an ethical dilemma when Louis forces him to make a decision that could hurt his relationship with Harvey. Elsewhere, Harvey's past comes back to haunt him during a case.

Jessica hopes Harvey's promotion will reign him in, but when a crisis arises with the first client he brought into the firm, Harvey goes rogue trying to fix it.

Harvey and Jessica's relationship is tested when Harvey defends someone from her past. Also, Louis assigns Mike his first solo case, a pro bono that has him itching for a win.

Harvey and Mike work to save a woman wrongly accused of insider trading. Mike helps Rachel study for the LSAT, only to find out she is on the brink of discovering his closely guarded secret.

Mike takes on Louis' protégé during a mock trial, but his conflict with Rachel could hurt his chances of winning. Elsewhere, Harvey works on a merger between two hotel chains, but his past with the opposing counsel complicates matters.

Harvey meets his match in a cocky opposing counsel in a class action lawsuit, and Mike unknowingly helps frame Rachel as a traitor to the firm.

Harvey must fire an accountant for falsifying his credentials, but Mike finds a more sinister motive for his termination and becomes concerned about his own employment. Meanwhile, Louis thinks he's found his future wife.

Harvey's former mentor turns to him for help when his office comes under investigation. Meanwhile, Jenny suspects Mike may be occupied with more than just his job.

Harvey's efforts to free an innocent man hit a wall when he goes against the new district attorney, who seems more focused on the integrity of the system than justice.