Peter determined that the only way to fight the Observers was to become one himself.
The Observer
Observers are featured in this episode.
Timestamp: 22:10
Episode Clues
Previous Episode Clue
Graffiti on an overpass in 'The Bullet that Saved the World' reads "Manifest Destiny", foreshadowing the Observer's shipping manifest the Fringe team decodes in 'An Origin Story.'
Timestamp: 31:05
Next Episode Clue
Graffiti behind Anil's van in 'An Origin Story' says "Ask Alice", foreshadowing the theme and title of 'Through the Looking Glass and what Walter Found There'.
Timestamp: 09:02
Items of Interest
Observers send materials to themselves via shipping lanes from the future using metal cubes. (Image 1)
Walter's propane tank, which he had brought out to make bratwurst, blocked Astrid from retrieving a tape.
Names for Astrid
Walter called Astrid 'Abner'.
Connection Chart
A visualization of all the ways this episode connects to other episodes. Scroll down to see the actual connections.
Episode Connections
S1E08 - The Equation
The End Dock Stabilizer's lights in 'An Origin Story' flashed the 'green-green-green-red' pattern from 'The Equation' when Peter finished assembling it.
Green-green-green-red S5E05 - An Origin Story Timestamp: 31:59
S2E17 - White Tulip
WALTER in 'White Tulip': "Grief can drive people to extraordinary lengths."
Peter's grief over losing Etta in 'An Origin Story' drove him to put Observer tech in his head to make him their equal.
Peter S5E05 - An Origin Story Timestamp: 41:49
Spoilers for future episodes below!
S5E13 - An Enemy of Fate
In 'An Enemy of Fate' the Fringe team used a shipping lane to send Walter and Michael to the future, determined from the shipping manifest Astrid previously decoded in 'An Origin Story'.