Alicia and the partners must decide whether to take on the case of a massage therapist who accuses a Nobel Peace Prize winner of sexual assault. Meanwhile, Peter and Eli try explore the implications of Wendy's candidacy on their campaign.
Just before the dawn of Black Sunday, Salem seems doomed, for the devil has returned in the form of Mary's son. Moreover, Sebastian, driven by jealousy, challenges John to a relentless fight.
Grissom and Sara's investigation into charges against David Hodges heats up; a video game developer's body is found floating in a fountain before a gaming tournament.
Donna and Harvey receive their first taste of how Samantha operates; Alex tries to impress Zane; anger grows for Louis.
Kate discovers the man she and Maggie have been competing for is involved in her next mission; Dean puts his career at risk when an attractive passenger tempts him.