The recurring theme of the Green and Red dots has finally paid off in "The Equation". The flashing Green, Green, Green, Red light pattens are used by the bad guys (Pattern makers?) to put people into a hypnagogic trance.
Green and red dots have been appearing since the very first episode. First, on the Kayak in Olivia's dream sequence in Pilot, then in The Arrival, inside the binoculars of The Observer, and later on the hat of John Mosley.
Here you will find screen captures of each episode of Fringe which are of special interest and/or that contain easter eggs. Easter eggs are hidden content intentionally inserted by the creators of Fringe. If you would like to request a screencap, you can do so by leaving a comment here.