Fringe Connections

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.

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

The frog 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".

Michael can show emotion as he cried when he saw Nina's dead body.

Butterflies can be seen in Etta's apartment.

The universe window from "Peter" was seen in Walter's storage vault in "The Bullet that Saved the World".

Bell stole Walter's David Bowie album 'The Man Who Sold the World', which describes what Bell did multiple times for his own benefit.

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

In "Back to Where You've Never Been" Peter and Lincoln set up the universe portal in the Orpheum Theater, the same place Walter, Olivia, and the Cortexiphan subjects crossed over to rescue Peter in "Over There (Part 1)".

Donald entered the mine 5 weeks after the invasion and took some rocks. He was described as being in his late 30s, medium height, dark hair. Donald said he was waiting for "a colleague, a scientist from Boston, to meet him." Observers found him and took him away.

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

Walter looked upset when he found Peter's coin in the lake house in "There's More Than One of Everything" because Peter was holding it as he died in "Peter".

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 as Olivia and Shapeshifter Charlie fight in the alley.

A butterfly shadow box like those seen in "The Dreamscape" was seen in Walter's storage vault in "The Bullet that Saved the World".

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

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

The combination to Bell's safe in "Concentrate and Ask Again" was 0-5-2-0-1-0, the same combination used in "Five-Twenty-Ten".

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

The butterfly glyph can be seen near Lincoln in the rail yard.

In "Os" Peter revealed to Olivia that he was working on the Shapeshifter devices that he collected in "Reciprocity" by killing Shapeshifters.

Madison Square Garden in the Redverse is quarantined in amber.

Butterflies can be seen in Olivia's bedroom.