Fox has released the third trailer for the final season of Fringe, returning with the Season 5 Premiere Friday, September 28 at 9 PM ET. The last 13 episodes were set up by "Letter's of Transit" in Season 4, which took us to a future where The Observers have taken over the world. This season takes us into the year 2036, where the Fringe team must do battle with these pale, black-clad enemies. Take a look at this video where John Noble's Walter has been bloodied by the hands of one Observer.