Fringe Connections

When Peter left the hospital in "The Last Sam Weiss" he wrote "I am going home" on an envelope, the same phrase he wrote for Elizabeth in "Subject 13" when he tried to return to his home world.

The opening crawl is an homage to Blade Runner.

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

Walter sent Peter the white tulip note from "White Tulip" in the mail and Peter received it in "An Enemy of Fate" after the future was successfully altered.

Susan Pratt's wardrobe is full of dark colors like Olivia's and Nick Lane's.

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

The Observers read Nina's phone call from the impressions her sound waves made on the glass in her office in "Anomaly XB-6783746", like Peter did in to hear the phone call Nancy Lewis made in "The Road Not Taken".

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.

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

The anti-gravity osmium bullets from "Os" were used as a weapon against the Observers and Loyalists in "An Enemy of Fate".

The green and yellow posters in the diner represent how this new timeline with the yellow/amber title sequence is starting to merge with the original timeline with the blue title sequence now that Peter has returned (blue + yellow = green).

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

The rollercoaster seen from atop the World Trade Center in Olivia's mind in "Lysergic Acid Diethylamide" is a reference to the one she rode with Ella in "August".

There are 'Wanted' billboards for the Fringe team.

A leaf can be seen on the bio-scan monitor at the Liberty Island security checkpoint.

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

The license plate on Olivia's SUV reads 1R2D21, and the licence plate on Broyles's SUV reads 1C3PO1.

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

In "6:02 AM EST" Walternate trapped Fauxlivia in the same cell as Olivia was kept in in "Over There (Part 2)".

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

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

Broyles had jazz posters in his storage unit in "Earthling". His character in "Brown Betty" performed in a jazz bar.

Sam Weiss died 10-15 years earlier in a shootout with Observers trying to protect the radio signal relay used to locate Michael.

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