Fringe Connections

William Bell had a bell on his desk in "There's More Than One of Everything". He rang it after he introduced himself. He did that to prime Olivia to receive his soul should he die in the future. Walter rang that bell in "Os" and Olivia became inhabited by William Bell.

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

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

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

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

A butterfly can be seen painted on the side of a white trash can.

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

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

William Bell left Nina a bell in his will in "The Box". Walter rang that bell in "Os" which initiated Bell's soul magnet experiment.

The Child's happy expression drops when he sees the Observer.

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

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".

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 frog can be seen on the dock when Walter is high.

September's device in "A Short Story About Love" led Peter to the beacon from "The Arrival".

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

The merged wall paintings from "Jacksonville" were seen in Walter's storage vault in "The Bullet that Saved the World".

The Redverse traded Alt Broyles for Fauxlivia by cutting off one of his legs to make their masses equal.

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

The radio found in the pocket universe in "Through the Looking Glass and What Walter Found There" was stuck on 6955 kHz, the same frequency as the number station broadcasts in "6955 kHz".

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

Walter's password at Massive Dynamic in "Letters of Transit" is 0-5-2-0-1-0, the same as the combination to the Jacksonville daycare center and to Bell's safe in "Five-Twenty-Ten".