Just saw it, a bit late I know. Wow this really made up for some of the slow episodes. I was so glad that Harrison didn't die, as he really makes the show for me, and they have sorta fazed out Meredith and it looks like Lindsay is heading off they couldn't really kill off Harrison.
I didn't want Luke to die but his death is the catylist (even if I can't spell it) to Tru's attitude towards the end. Although she did state she would never give it up, losing Luke really hit it home to her.
Next season is going to be so good. When Jack first showed up I thought perhaps he might have been sent by her father but when it all came out about him in the institute I re-thought it, should have stuck with it. I certainly didn't think of the fact that Tru's father killer her mother because he was just like Jack, never really gave much thought as to why he had her killed.