Fringe Connections

The Porcupine Man from "Nothing as it Seems" was seen in Walter's storage vault in "The Bullet that Saved the World".

Walter's pose as he listens to the Mozart Requiem is a reference to the iconic Maxell tape advertisement from the '80s.

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

The Observers read Broyles' phone call from the impressions his sound waves made on the glass in his car in "An Enemy of Fate", like Peter did in to hear the phone call Nancy Lewis made in "The Road Not Taken".

The briefcase contained photos of Walter.

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

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".

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

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

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".

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 apple glyph can be seen on the backrest of a chair in the lab.

The bus in "The Ghost Network" is ambered. Ambering later becomes a real safety tool used by the other side as seen in "Over There (Part 1)".

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).

A seahorse can be seen on Peter's luggage.

Jones stole a very powerful energy cell from Nina's arm in "There's More Than One of Everything." In "Enemy of My Enemy" Jones was trying to locate and steal a similarly powerful energy source, amphilicite.

Madison Square Garden in the Redverse is quarantined in amber.

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

Walter's car in "The Same Old Story" has a severed hand in a jar, and Peter jokes "Friend of yours?". Walter eventually cuts William Bell's hand out of amber in "Letters of Transit".

Nick Lane's wardrobe is all dark colors like Olivia's.

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

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.

William Bell left Massive Dynamic to Walter.

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