Fringe Connections

The 'green-green-green-red' pattern from "The Equation" is seen on Donald's Observer communication device in "August".

Walter's pose as he listens to the Mozart Requiem is a reference to the iconic Maxell tape advertisement from the '80s.

A butterfly can be seen attacking Mark Young.

In "The Human Kind" Walter tested the Observer tech implant on the brain of the Porcupine Man from "Nothing as it Seems".

Who did the Observer say was "still alive," Peter or Walter?

A hand can be seen outside the entrance to the daycare center.

The creature from "Snakehead" and images of it were seen in Walter's storage vault in "The Bullet that Saved the World".

The cuneiform on the boat door says "bí".

The flower glyph can be seen on the wall in Karen Truss's house.

The Observer's binoculars in "The Arrival" have the green-green-green red pattern from "The Equation" at the bottom left corner.

When Walter explains that his red/blue lensed glasses were created by his friend from Washington, Doctor Jacoby, he's referencing the television show 'Twin Peaks' which also had an eccentric man of science, Doctor Jacoby, who wore red/blue lensed glasses very similar to Walter's.

A frog can be seen in Walter's Monty Python trip.

Peter found Olivia in a field of white tulips in "Subject 13", a nod to "White Tulip".

Observers send materials to themselves via shipping lanes from the future using metal cubes.

The flower glyph can be seen on the wall in the diner where Olivia and Lincoln meet.

Bell was unwell and needed oxygen in Olivia's memories in "Momentum Deferred" which could be because he had lymphoma as Nina revealed in the alternate timeline in "Brave New World (Part 1)".

The license plate on Olivia's SUV reads 1R2D21, and the licence plate on Broyles's SUV reads 1C3PO1.

The flower glyph can be seen on a door in the pocket universe.

James Heath met with Lloyd Becker, a fellow Cortexiphan subject, in "Olivia. In the Lab. With the Revolver.". The name "Lloyd B." was on the height chart in "Jacksonville".

It is true that the Empire State Building's spire really was initially designed for airship docking as it was in the Redverse.

The leaf glyph can be seen as Olivia and Shapeshifter Charlie fight in the alley.

Joseph Meegar is able to control electronics around him in "Power Hungry" like the Observers can, such as August starting a car with his finger in "August".

The green and yellow posters in the diner represent how this new timeline with the yellow/amber title sequence is starting to merge with the original timeline with the blue title sequence now that Peter has returned (blue + yellow = green).

A seahorse can be seen on the Bishops' refrigerator.