Fox has released the first TV spot for the upcoming fourth season of Fringe, which debuts on Friday, September 23 at 9 PM ET. Click on the video player below for a brief 10-second clip featuring Joshua Jackson that teases what's in store for Fringe fans this fall.

You can also CLICK HERE for part of our exclusive chat with Fringe star John Noble, about what he expects to see in Season 4. Fringe returns this fall with its fourth season starting on Friday, September 23 at 9 PM ET on Fox.