Recap / The X-Files S01 E08 "Ice"

"We're not who we are."

The X-Files meets The Thing (1982), without all the cool stop-motion effects (though still maintaining a lot of the suspense). In essence, a team of geologists studying Arctic rocks lapse gradually into insanity and kill each other off one by one. Mulder and Scully, along with two scientists, a doctor and a pilot, fly over to the base to see what's up. Unsurprisingly, the craziness starts affecting them too.