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

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

The creature from "Snakehead" and images of it were 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 can be seen outside the entrance to the daycare center.

Peter found Olivia in a field of white tulips in "Subject 13", a nod to "White Tulip".

Jones said there are 10 tests for Olivia in total. The first was a box of lights that Olivia had to turn off with her mind.

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

James Heath, a Cortexiphan subject, couldn't control his abilities in "Olivia. In the Lab. With the Revolver.". In "Over There (Part 1)" he had been trained to cure disease instead of cause it.

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.

Walter used the same neural halo in "Alone in the World" as he used on the Child in "Inner Child".

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

A hand can be seen on the wall when Olivia and Peter attack the Observers and Loyalists.

Walter hid the beacon at the tombstone of his father, Robert Bishop, in "The Arrival". Robert Bishop's work and history is central to the plot of "The Bishop Revival".

When Walter explains that his red/blue lensed glasses were created by his friend from Washington, Doctor Jacoby, he's referencing the television show 'Twin Peaks' which also had an eccentric man of science, Doctor Jacoby, who wore red/blue lensed glasses very similar to Walter's.

The leaf glyph is on the electronic keypad at Massive Dynamic.

Jones got 'electrocuted in half' after fighting Peter in "Brave New World (Part 1)" similar to how he got sliced in half in "There's More Than One of Everything".

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 as Olivia and Shapeshifter Charlie fight in the alley.

September's security system flashed the 'green-green-green-red' pattern from "The Equation" before exploding in "The Boy Must Live".

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

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