Fringe Connections

Fauxlivia studied old Fringe cases for intel in "The Box", including Olivia's taped testimony from "Dream Logic".

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

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

The anti-gravity osmium bullets from "Os" were used as a weapon against the Observers and Loyalists in "An Enemy of Fate".

All of the people in Olivia's mind wear blacks and greys because Cortexiphan subjects have a strong desire to blend in.

A leaf can be seen on the bio-scan monitor at the Liberty Island security checkpoint.

The Porcupine Man from "Nothing as it Seems" was seen in Walter's storage vault in "The Bullet that Saved the World".

Olivia struck James Heath with a candlestick in her dining room, making the title a complete red herring.

A seahorse can be seen on the Bishops' refrigerator.

Walter implanted a tracker in his neck in "Snakehead" which is used in "Grey Matters".

There are 'Wanted' billboards for the Fringe team.

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

The merged wall paintings from "Jacksonville" were seen in Walter's storage vault in "The Bullet that Saved the World".

Mark Young's colleague is wearing a butterfly pin, possibly prompting the subject of his hallucination.

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

In "Brave New World (Part 1)" Walter sat in his old cell at St. Claire's from "Pilot".

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.

The leaf glyph is on the electronic keypad at Massive Dynamic.

Olivia's therapist in "Nothing as it Seems" is the same one she had when she was trapped on the other side in "Olivia".

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).

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

Walter had his life's work in a journal in "Black Blotter" just like he did in the fairy tale he told Ella in "Brown Betty".

Olivia pulled up a list of the frozen heads found in S02E04 'Momentum Deferred' and they were all marked with "2E204", a reference to the episode in which they were stolen.

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