Fringe Connections

William Bell had a bell on his desk in "There's More Than One of Everything" and rang it after he introduced himself to Olivia. He left a similar bell to Nina in his will in "The Box".

Peter's shared dream state with September looks like an observation deck.

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

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

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

Butterflies can be seen in Etta's apartment.

Senator Van Horn, who died in "Do Shapeshifters Dream of Electric Sheep?", was still alive in the altered timeline and talked to Broyles in "Brave New World (Part 2)".

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

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

Walter thought of Peter when he saw the image of a coffin in "Grey Matters" because his Peter died in "Peter".

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 hand glyph can be seen on the piano stool in the Orpheum Theater in the Redverse.

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

The Fringe team is the First People. Walter sent the parts of the machine back through time via the wormhole in Central Park. That's why the First People had such a knowledge of Peter and Olivia.

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

In "Olivia" they gave Olivia the same tattoo as Fauxlivia had in "Over There (Part 1)".

Windmark said "Nothing grows from scorched earth" to Walter and then later Walter saw a dandelion growing from rubble outside. He has hope.

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

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".

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.

Olivia shot her captors in "The Human Kind" with the bullet she took from Etta in "The Bullet that Saved the World".

A seahorse can be seen on the Bishops' refrigerator.

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