At the beginning of series 12 I thought that maybe the old warhorse had finally had its day. Then along comes an episode like this to remind long term viewers why they stay with the programme. From the shocking start to the emotional ending this had everything. Pratt returned from his stint in Africa a different man from the immature one that had left a few weeks earlier. His first case involving the victims of an apparent burglary gone wrong had a conclusion that no one could see coming. Clemente's problems finally took their toll on him, but not before he had proved once more what a brilliant instinctive doctor he was even with his mental health in jeopardy. There were some surprisingly vitriolic comments about the war in Iraq, a sure sign that even mainstream America is starting to have its doubts. Many series come and go, but after a sticky patch E.R. is definitely back on form.