Fringe Connections

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".

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

Butterflies can be seen on a box in September's apartment.

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.

Olivia struck James Heath with a candlestick in her dining room, making the title a complete red herring.

A seahorse pattern can be seen in the toxin's molecular structure.

The ship at the end of "Nothing as it Seems" showed the creatures from "Snakehead".

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 butterfly can be seen attacking Mark Young.

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

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'.

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

In "The End of All Things" September told Peter about Henry, the son he never knew existed, who was born in "Bloodline".

Madison Square Garden in the Redverse is quarantined in amber.

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

The ship at the end of "Nothing as it Seems" shows creatures like the Porcupine Man from "The Transformation".

William Bell left Massive Dynamic to Walter.

The butterfly glyph can be seen near Lincoln in the rail yard.

In "And Those We've Left Behind" Astrid used the same wand to detect abnormalities that Lincoln used in the opera house in "Over There (Part 1)".

Donald helped Walter set up the pocket universe hiding spot.

Butterflies can be seen in Olivia's bedroom.

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".

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