Grey's Anatomy (2005)

S7E13 Don't Deceive Me (Please Don't Go)

Derek launches his clinical trial for Alzheimer’s, leaving Meredith feeling excluded from the excitement. Meanwhile, Bailey's effort to modernize the hospital with live tweets from the operating room clashes with the Chief’s traditional views. Additionally, Callie, Mark, and Arizona must figure out how to support each other during the pregnancy, but things get off to a rocky start when Callie drives her new obstetrician up the wall.