Fringe Connections

The ship at the end of "Brave New World (Part 2)" showed the creatures from "Snakehead".

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

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

Cecil mentions the Observers using a light bomb in "Through the Looking Glass and what Walter Found There", which is what Loyalists threw at Peter in the sewer tunnels in "The Bullet that Saved the World".

The episode opened in "Manhatan", seemingly a typo but actually signifying this was an alternate Manhattan.

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

The password to retrieve Michael in "Black Blotter", "Black Umbrella", came from the poster for Singin' in the Rain, from which September chose his new name (Donald O'Connor) in "The Boy Must Live".

Nick Lane's wardrobe is all dark colors like Olivia's.

A seahorse pattern can be seen in the toxin's molecular structure.

John Mosley's beanie in "The Arrival" has the 'green-green-green-red pattern' from "The Equation".

The cuneiform on the boat door says "bí".

A butterfly can be seen on a lampshade near the front of Olivia's apartment.

In "The Ghost Network" Roy had visions of the crash of Flight 627 from "Pilot", suggesting that that incident is part of a larger pattern of incidents and not a one-off event.

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

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

William Bell had a bell on his desk in "There's More Than One of Everything". He rang it after he introduced himself. A ringing bell in "Momentum Deferred" is the catalyst for Olivia remembering the events of her meeting with Bell.

When Nina looks in Bell's storage room for his copy of the First People book the camera pans by a copy of 'Dr. Spock's Baby and Childcare'.

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

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

There are 'Wanted' billboards for the Fringe team.

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

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".

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

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