The Fringe team must find the pattern between tragic time loop anomalies. As the investigation unfolds, Raymond, an electrical engineer, and his wife Kate, a professor of theoretical physics, enter the picture. Peter’s existence remains unreconciled with the Universe at large.
I was really hoping that this episode would lead to Peter being re-integrated into the fringe team. Unfortunately Peter now seems to feel that this isn’t his universe after all. Although he has no recollection of causing either Walter’s visions or Olivia’s dreams, those occurrences would lead you to believe that peter was once part of their universe.
The unforeseen consequences of the choices we make is once again a central theme in Fringe. An electrical engineer uses his wife’s research in theoretical physics to construct a time compartment. Time is regressed by four years inside a spherical envelope where he is able to recapture lost time with his wife who has since succumbed to Alzheimer’s disease. The engineer did not foresee catastrophic “time displacement” bubbles that are being generated as a side effect of his experiments. Fringe division must shutdown equipment before fatal collisions in time space claim hundreds of civilian lives.
By the end of the episode Olivia has come to the personal conclusion that she (or her counterpart in another universe) must have been very important to Peter. It seems agent Dunham has taken notice of the way Peter looks at at her when he thinks she is unaware. She leaves no illusion for Peter; that a romance might exist between them (in her reality). Peter resigns himself to finding a way back to the Universe he know and the Olivia Dunham he loves. Perhaps the possibility remains for some kind of relationship between Olivia and Agent Lincoln Lee.