Fringe Connections

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

There are 'Wanted' billboards for the Fringe team.

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

Walter implanted a tracker in his neck in "Snakehead" which is used in "Grey Matters".

Jones is working with Bell, who is alive.

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

Ten Observers are present on Liberty island in "The Day We Died" from an assumed total of 12, given their names. One of the missing two is August, who was killed in "August".

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.

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

The entire story of Fringe started in "Peter" when Walter crossed worlds with a boy that wasn't his because he couldn't stand to let Peter die, and the entire story concluded in "An Enemy of Fate" when Walter crossed worlds with a boy that wasn't his knowing that by doing so he would never see Peter again.

William Bell left Massive Dynamic to Walter.

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

Walter and Donald hid the Child from "Inner Child" in the pocket universe in "Through the Looking Glass and What Walter Found There".

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

A seahorse can be seen on Peter's luggage.

The posters from Peter's Redverse bedroom in "Subject 13" were hung on the wall when Walternate took him back in "Over There (Part 2)" in order to bring a sense of comfort and familiarity to Peter.

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.

Olivia had a horse-riding ribbon in Nina's old photograph in "Novation". Nina rode horses herself in "The Cure" so it stands to reason that Olivia would have done so as well in the timeline where she was raised by Nina.

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

Butterflies can be seen in Etta's apartment.

The nanites in "Brave New World (Part 1)" have an "X" on them that matches the "X" on the shirt worn by the man Peter freed from Olivia's mind in "Lysergic Acid Diethylamide", suggesting that "Mr. X" from Olivia's mind may have been William Bell (who was ultimately behind the nanites).

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'.

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