Grey's Anatomy

Season 5, Episode 12

Episode Title: Sympathy for the Devil

Air Date: 2009-01-15

Overview:

Derek's mother, Carolyn, makes a surprise visit to Seattle and meets Meredith for the first time, as Mark tries to conceal his relationship with Lexie from her as well; meanwhile, death row inmate William wishes to donate his organs to Bailey and Arizona's patient, as Owen and Cristina try to go on their first date.