Great episode, the character of Lucy Knight was always one of my favorites. The characters returning continue to knock you out with good performances. Its cool to actually see Peter Benton having a good time and not being such a hard ass.
My only issue with this episode is that we don't know about what happened to the family that was shot by their father in the Season 4 Finale. Also Doug Ross and Carol Hathaway are seen still working here, so what happened there?
Hopefully these questions will be answered later on in the Season. Other than those few issues(which I'm sure are rectified later on)this is another top class ER episode.