In this episode, a young teen is unable to stop the visions she has of pending fatal events. She catches the attention of the Fringe team and is able to stop a mass casualty event just before it occurs. Meanwhile, Olivia grows wary of the ominous warning she received from The Observer as Peter's insights allow him to take the lead in the investigation.
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This foreshadows the first appearance of a previously unseen Observer, March, in the next episode.
The Observer can be seen watching Olivia's apartment as she and Nina are inside.
Signage for "Mallum Insurance" in 'Enemy of My Enemy' foreshadows the story of the Mallum family in 'Forced Perspective'.
The Mallum family in 'Forced Perspective' lives next to a thrift store named Anges de la Pitié, French for 'angels of pity', foreshadowing Neil's perception of himself as a savior to those who would soon experience suffering in 'Making Angels'.
Walter hypnotized Roscoe Joyce in "The Firefly". (Image 1)