Fringe Connections

A bus at the second crime scene in "The Plateau" has an ad on the side that says "Ambered", a reference to the ambered bus in "The Ghost Network".

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

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

The hallucinogenic drug from "The Dreamscape" was used as a weapon against the Observers in "An Enemy of Fate" to make them think they were being attacked by butterflies.

The opening crawl is an homage to Blade Runner.

Butterflies can be seen in Olivia's bedroom.

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

The briefcase contained photos of Walter.

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

Senator Van Horn, who died in "Do Shapeshifters Dream of Electric Sheep?", was still alive in the altered timeline and talked to Broyles in "Brave New World (Part 2)".

The crane that crashed during the intro has a Massive Dynamic logo on it.

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

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".

Jones is working with Bell, who is alive.

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

Peter needed a Faraday cage to safely enter the time bubble in "And Those We've Left Behind" like Alistair Peck built into his own body in order to time travel safely in "White Tulip".

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.

A seahorse can be seen on Peter's luggage.

The intense amount of Cortexiphan coursing through Olivia in "Brave New World (Part 2)" was able to heal her mortal wound. This was foreshadowed in "Brown Betty" when Olivia was sliced by the same weapon that killed Rachel, yet instead of dying Olivia's skin started to heal itself.

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

A seahorse can be seen on the Bishops' refrigerator.

Walter had the Cortexiphan subjects stand in a circle around him to activate their abilities in "Over There (Part 1)" just like he did when they were children in "Subject 13".

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

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