The X-Files miniseries is not going out without a bang.

Fox has just dropped a new promo for Monday's finale episode — which brings to a close the six-episode event — and the episode looks insane.

From the sneak peek, we see that a sickness threatens to take the lives of recently introduced Agent Einstein, Tad O'Malley (Joel McHale) and many others — but Mulder and Scully will, as usual, stop at nothing to prevent this from happening.

Their fight, it appears, brings Mulder gun-to-face with CSM and both Scully and Mulder face-to-face with an actual UFO.

Gillian Anderson promises a "really amazing climax" in the video and we're inclined to believe her. At least, we want to believe.