Olivia vs. Olivialternate. The first meet-up between the same people had to end with an epic fight and our Olivia wins. That was pretty much all the episode needed to be good. Olivia saves Peter and the viewers get the kiss they've been waiting for. And the ending? I think it explains itself.
For the most part the escape from the alternate universe seemed way too convenient. Peter is left alone in the apartment with the machine, William Bell and Peter are able to make a device fairly easily. I never once doubted whether they'd get back, though I did predict that Olivia wouldn't be the one crossing over.
Olivialternate has successfully infiltrated the our world while Olivia is kept locked up in a dark room by the sinister Walternate. So now what? Will Olivialternate be able to pass herself off as Olivia long enough to complete her task? How will Olivia come back? There's endless possibilities and despite a somewhat lax path to the end, I've become really invested in the show, much more than I was at the end of the first season.
When William Bell held his hand up before crossing over, was anyone hoping for a Vulcan salute? I got really excited before I realized he wasn't doing anything special with his fingers. William Bell disappears into the void and that may be the last time we see Leonard Nimoy.
Score: 9.4/10