Grey's Anatomy: Season 5, Episode 12

5 - 12: Sympathy for the Devil

Derek still doesn't approve of Meredith showing sympathy for the death-row prisoner and Dr. Bailey continues aiding Dr. Robbins to save a boy who needs a new liver. Callie treats a short man who underwent a risky procedure for two extra inches and Meredith freaks out about Derek's Mom (Tyne Daly) visiting Seattle Grace. Hunt asks Cristina out and Izzie breaks up with Denny. Tyne Daly and Jeffrey Dean Morgan Guest star.