Fringe Connections

The 'green-green-green-red' pattern from "The Equation" is seen on Donald's Observer communication device in "August".

Mark Young's colleague is wearing a butterfly pin, possibly prompting the subject of his hallucination.

Butterflies can be seen in Etta's apartment.

An ambering device, first (nearly) used by the Blueverse Fringe team in "6B", was seen in Walter's storage vault in "The Bullet that Saved the World".

Carr's work review sent to Astrid from his previous employer shows that in the three years prior to his dismissal, he only missed three days of work. He was out for only one day each year and each year it was the same day: Valentine's Day.

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

The Beacon from "The Arrival" appeared in "Brown Betty" as the Watchers attempted to locate Peter.

All of the people in Olivia's mind wear blacks and greys because Cortexiphan subjects have a strong desire to blend in.

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

A butterfly shadow box like those seen in "The Dreamscape" was seen in Walter's storage vault in "The Bullet that Saved the 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.

Jones presented Olivia with the light box test in "The End of All Things" just as he did in "Ability".

Peter's shared dream state with September looks like an observation deck.

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

Michael played the music box from "The Boy Must Live" for September after September got shot in "An Enemy of Fate".

The Child's happy expression drops when he sees the Observer.

The butterfly glyph 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".

This episode reveals that there is more than one Observer. The intro sequence since the pilot episode has had a single frame that says "OBSERVERS ARE HERE".

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

Peter's map of Walter's crimes in "Brown Betty" resembles the map of Pattern cases 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).

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