Every. Single. Scene. With. Peter. In. This. Episode.
Seriously, show, why the blatant effort to make me fall in love with the character even more? I've accepted that two years ago, your really wasting your time...
Keep it going, please.

I just loved the way that everything fit together. Peter serving his mother fruit salad from a plastic bowl in his near-empty flat; trying to get her to notice him when she was worrying about not-Nathan; the scenes intercut with Emma and the revelation that "her doctor" is her mother; being ignored while saving Emma being hit by a bus, and the way they shut off the audio so we saw everything through Emma's eyes - or ears; the scene with the children's choir that sang so very slightly off key that it avoided getting too kitschy, and that scene with her on the piano. I awwwwwed.

And Peter meeting up with Hiro! Yay!
Sorry, did I miss anything about other characters this episode? I remember a blur of people running through woods and girls in flashy dresses. Can't have been important