Katherine and Wheeler share their grief and confusion over Tom's suicide. Maggie's ex husband returns asking forgiveness. David's son visits Will, leaving him with yet another clue to David's death.

Will travels with Spangler to DC, leaving the team to make a very important decision on their own. Katherine finds a suspicious voicemail on Tom's cell phone from the day before he died.

David's code leads Will to suspect someone at API. Katherine loses faith in Wheeler and decides to take matters into her own hands.