After 25 years, 218 episodes and two big screen adventures, The X-Files (most likely) completes its run tonight.

The final episode of Season 11 – and quite possibly the final episode ever – airs in the US, bringing to a close a quarter century of stories featuring agents Mulder & Scully.

Ahead of tonight’s finale, FOX has released one last teaser trailer to get fans (myself included) foaming at the mouth.

Here it is…

In the UK, The X-Files Season 11 concludes in two weeks’ time.