Fringe Connections

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

Sam Weiss died 10-15 years earlier in a shootout with Observers trying to protect the radio signal relay used to locate Michael.

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

In "Liberty" the Fringe team used the universe window from "Peter" to help them rescue Michael.

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

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

The End-of-Dayers used light bombs called Electrilights in "The Day We Died". Loyalists threw a light bomb at Peter in the sewer tunnels in "The Bullet that Saved the World".

Olivia entered "Martin Luther King/Eldridge Cleaver Memorial Park" which has a plaque quoting them as saying "We have a dream" rather than "I".

A seahorse can be seen on Peter's luggage.

When Peter left the hospital in "The Last Sam Weiss" he wrote "I am going home" on an envelope, the same phrase he wrote for Elizabeth in "Subject 13" when he tried to return to his home world.

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

The ship at the end of "Nothing as it Seems" shows creatures from "Unleashed" in cages.

There is a Massive Dynamic logo on Flight 627's engine.

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

Agent Jessup was relating season 1 Fringe cases to Bible verses in "A New Day in the Old Town". In "Nothing as it Seems", creatures can be seen on something resembling Noah's Ark.

Peter's grave says he died when he was 7.

The butterfly glyph can be seen outside the entrance to the daycare center.

The ship at the end of "Nothing as it Seems" shows creatures like the Porcupine Man from "The Transformation".

There are 'Wanted' billboards for the Fringe team.

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

Walter had the Cortexiphan subjects stand in a circle around him to activate their abilities in "Over There (Part 1)" just like he did when they were children in "Subject 13".

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

A seahorse can be seen hanging from the taxi when Walter listens to music.