Arizona returns to the hospital and works on a case with Alex and April. Owen feels responsible for the crash after finding out he switched the hospital's airline prior to the crash due to budget cuts. Bailey begins resenting having a Christmas wedding, while she and Cristina work on a patient who needs a liver transplant. April and Jackson have a pregnancy scare but break up when the test is negative. Callie and Jackson research options to fix Derek's hand. Cristina realizes she wants Owen back, but just before telling him, he asks for a divorce. Meredith tells Derek that she is three weeks pregnant, but doesn't want anyone else to know.