Loved the suspense in this episode. Loved Peter being all heroic and Olivia being so happy with him in his bed at Walter's place.
And I particularly
loved seeing Sam Weiss again. Not to clarify anything, of course, but at least to have him as part of the action again.
It was inevitable from the beginning of the season that Peter would get into the machine. I thought he'd be zapped into the other world. Apparently not. So what happened?