Fringe Connections

Joseph Meegar is able to control electronics around him in "Power Hungry" like the Observers can, such as August starting a car with his finger in "August".

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

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

The boy in "Alone in the World" played with the same action figure Peter showed to the Child in "Inner Child".

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

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

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.

The briefcase contained photos of Walter.

A butterfly can be seen on a lampshade near the front of Olivia's apartment.

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".

The opening crawl is an homage to Blade Runner.

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

Jones got 'electrocuted in half' after fighting Peter in "Brave New World (Part 1)" similar to how he got sliced in half in "There's More Than One of Everything".

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 leaf glyph is on the electronic keypad at Massive Dynamic.

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

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

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

The entire story of Fringe started in "Peter" when Walter crossed worlds with a boy that wasn't his because he couldn't stand to let Peter die, and the entire story concluded in "An Enemy of Fate" when Walter crossed worlds with a boy that wasn't his knowing that by doing so he would never see Peter again.

The episode opened in "Manhatan", seemingly a typo but actually signifying this was an alternate Manhattan.

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

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)".

Observers send materials to themselves via shipping lanes from the future using metal cubes.

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