This episode concerns a mysterious cylindrical object called "The Beacon" which appears at a construction site in New York City. The story also involves the relationship between Walter Bishop and the mysterious Observer first feature appearance.
This episode's glyphs spell:
The original FOX press release for this episode stated that Michael Kelly, who played the villain, was playing a character named Rogue. Eventually a theory developed among fans about the character's true involvement in the story. See the FAQs page for more details if you've seen the entire show or are comfortable reading heavy spoilers.
The Observer is featured in the episode.
There is a sign depicting the beacon from 'The Arrival' on the wall of South Station in 'The Ghost Network'.
There is a flyer on a pole outside of the cafe where the Observer is eating in 'The Arrival' that says "UNLOCK YOUR HIDDEN POTENTIAL", which is the slogan on the ad that Joseph Meegar responds to in 'Power Hungry'.
- Project 643 - Exploration 3 -
Only a mild sedative, should knock her out for only a short while. The girl won't understand, nor the others. Not a preferred course of action, but necessary. I have to meet with my friend, and the clouds are gathering, I can hear them already. I know what's to be done: find a new hiding place, before the chase begins. Round and round the mulberry bush, the monkey chased the weasel! It has returned to plague me again. Fallen like a ton of feathers, right into the banana patch. Wrestling with my insides, trying to extract something. Like the bearded man, when he told me he needed another pearl. Thank you sir, may I have another? I told my friend he should get a toupee, or at least a better hat, and he said it's a fair wind that bloweth no man any ill. The walls, the walls, push back the walls! The boy knows but doesn't know that he knows. He brought me whole flies when I asked for only the wings. And the sarsaparilla was not from Sioux City. But he'll be okay as long as we stay, when there's more songs to play and few things to say. We'll need to ask the Fisher King for answers. Chapter next, turn the page, feed the germs to a macrophage. Is that where it goes, a scrapyard or a graveyard? No matter, just keep it from Scotland Yard. A tisket a tasket, dare I even ask yet? I left something behind, in a mattress or something like it. Phi, chi, psi, omega, that's how it starts. An equation that will take me back, back, back to where I once belonged. Kenneth, what's the frequency? Once at 2 MHz, again at 4, and once in a blue moon.
Everything happening in Fringe can be traced back to Walter stealing Peter as seen in "Peter".