Fringe Connections

The combination to Bell's safe in "Concentrate and Ask Again" was 0-5-2-0-1-0, the same combination used in "Five-Twenty-Ten".

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

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

The merged wall paintings from "Jacksonville" were seen in Walter's storage vault in "The Bullet that Saved the World".

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 butterfly glyph can be seen outside the entrance to the daycare center.

In "The End of All Things" September said that he made a mistake when he distracted Walternate in his lab in "Peter" and saving Walter and Peter from the icy lake was an attempt to rectify that mistake.

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

Olivia shot her captors in "The Human Kind" with the bullet she took from Etta in "The Bullet that Saved the World".

Olivia entered "Martin Luther King/Eldridge Cleaver Memorial Park" which has a plaque quoting them as saying "We have a dream" rather than "I".

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

September loads his food with heat (pepper, jalapenos, hot sauce) in "The Arrival" because his emotions are dulled, as he explained in "The Boy Must Live".

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

The flower glyph can be seen on the wall in Karen Truss's house.

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.

There is a Massive Dynamic logo on Flight 627's engine.

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

Walternate has three solid-color panels on the wall of his office in "Bloodline": blue, red, and yellow. These symbolize the two universes (blue and red) and the rewritten timeline without Peter (yellow) starting from "Neither Here Nor There".

The flower glyph glitches away after the scene where Olivia's fear caused her to interrupt all the electronics in the room.

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

The End-of-Dayers targeted the Orpheum Theater in "The Day We Died", a soft spot from when Olivia and the other Cortexiphan subjects crossed over to get Peter in "Over There (Part 1)".

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.

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