Catherine learns that her father, a jazz pianist, is in town for a rare concert appearance. Their relationship is very strained and complicated. Owen works with Dr. Reggie Stark, the Under Secretary for Health from Veterans Affairs, on a special case involving Capt. Joseph Moran who is a decorated hero suffering from a war wound that that has become unbearable. They have tried everything to alleviate the pain but nothing works. Owen decides that Catherine should handle this case. Catherine learns that he is feeling pain in his left arm, but he has no left arm- it was amputated. Ali visits Leo who is recovering after the surgery to remove his benign but life- threatening brain tumor.