Wish You Were Here

Bailey pairs up with Dr. Arizona Robbins, Seattle Grace's new pediatric surgeon, to help save the life of a young patient. Derek is furious when a death row inmate is checked in to the hospital; Cristina and Meredith's friendship continues to erode; Callie and Sloan work through their attractions to Sadie and Lexie; and Izzie confesses to Alex that she has been seeing Denny.