The episode begins with what appears as a typo “Manhatan” which is really the other side. We quickly learn that coffee is a rarity on the other side and that New York has been getting microquakes. It’s then that both universes appear to have collided Manhatan and Manhattan, leaving Ted Pratchet and a few others their victims. It is Walter that realizes that universes must be in balance and as one building came over from their side – another building of equal mass must disappear over to their side. Walter recalls that Olivia once had the ability to see a "glimmer" and that going to Jacksonville and recreating the experiment might again trigger her ability. Once in Jacksonville, Olivia undergoes another round of Cortexiphan but her ability doesn't seem to get activated. Walter realizes she's changed -- no longer afraid and that fear was the one thing that seemed to activate the drug in her body. They head back to Massive Dynamic in an effort to determine which building will vanish over there. Coming closer to the deadline, Olivia now fearing her own failure she goes to Peter to admit she's afraid -- and an almost kiss happens -- when she confesses her fear. It's then she realizes she is afraid and her ability should be activated. She rushes outside, overlooking the city and finds the glimmer that Walter had been talking about.
Sixteen items in the daycare room in Jacksonville were from the other side – did one of those items include Peter or would he have been number seventeen?
Why can’t Olivia remember her time in Jacksonville at the Daycare facility?
When preparing to administer the IV of Cortexiphan – right arm, left arm, left arm -- what happens if it’s the wrong arm?
We meet young Olive within Olivia's Cortexiphan drug trip. Is this what she experienced as a child to trigger her ability? What's with the demon looking eyes?
We hear a whisper of "Olivia" while Olivia is in the forest. The transcript reads that it's possessed Olivia saying her name but are we sure of that. Could it in fact be Peter? There is some speculation it's his voice.
Things of interest:
We see a height chart at the daycare center. We find out later Olivia wrote down all the initials which comes in handy in "Olivia in the Lab with the Revolver."
If Peter Bishop didn't exist...
Peter remembered what Walter had said about the two items having to be of the same mass for crossing over. That helped them narrow down the buildings that it could be and he also helped in running the calculations and shutting down non-essential functions with the computers.
It was Olivia that came to Peter and confessed she was scared---scared of failing and possibly even scared of taking the next step and kissing Peter? It was her fear that trigged the ability to see the building, locate it and help in its evacuation.
It is also her ability that allows her in the end to see Peter is from over there. If he hadn’t existed, she wouldn’t carry the burden of knowing he was stolen from the other side.