The Fringe team investigates when the bodies of two 12-year-olds are found in an advanced state of decomposition just hours after bullying another boy. Meanwhile, Walter grows more and more distracted by hallucinations.
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This episode's glyphs spell:
This foreshadows Peter being "reborn" in the next episode.
The Observer can be seen walking in front of the Harvard lab building.
Professor McClennan's professional library in 'One Night In October' contains the book Killer Mindscapes by S. Pores, foreshadowing the fungi that can form mental connections with people from 'Alone in the World'.
A book titled Astral Projection and Other Psychic Phenomena in 'Alone in the World' can be seen in Walter's Lab, foreshadowing the astral projection ability Cameron James demonstrated as a child in 'Subject 9'.