Fringe Connections

The Franklin St. Station subway sign in "Amber 31422" shows the numbers 6-9-5-5 in the 'green-green-green-red' circle pattern from "The Equation".

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 on a lampshade near the front of Olivia's apartment.

In "Entrada" Fauxlivia was brought back to the Redverse via harmonic transfer with small rods injected into her hands, similar to the harmonic transfer that brought the bridge over in "The Man from the Other Side".

The flower glyph glitches away after the scene where Olivia's fear caused her to interrupt all the electronics in the room.

A hand can be seen on the wall when Olivia and Peter attack the Observers and Loyalists.

Olivia's pregnancy dream in "The Same Old Story" is in a waiting area with giant tulips. Young Olivia fled to a field with white tulips when she got scared in "Subject 13".

The briefcase contained photos of Walter.

Butterflies can be seen in Olivia's bedroom.

The bus in "The Ghost Network" is ambered. Ambering later becomes a real safety tool used by the other side as seen in "Over There (Part 1)".

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

A butterfly can be seen attacking Mark Young.

Walter checked Peter's eyes for signs of degradation in "Pilot". Jones's eyes showed signs of changing in "There's More Than One of Everything" after he was teleported out of prison.

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

The seahorse glyph can be seen on the back of one of Markham's books.

Peter ran possible futures in "Five-Twenty-Ten" to try to coerce the Observers to be where he wanted them to be just like Milo Stanfield did to his doctors in "The Plateau".

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

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

Ten Observers are present on Liberty island in "The Day We Died" from an assumed total of 12, given their names. One of the missing two is August, who was killed in "August".

The episode ends with September going into December's apartment, apartment 513, the episode code of the next and final episode of the series.

The apple glyph can be seen on the backrest of a chair in the lab.

In "And Those We've Left Behind" Astrid used the same wand to detect abnormalities that Lincoln used in the opera house in "Over There (Part 1)".

Windmark visited his boss, The Commander, in 2609.

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