[Ruy Dias de Bivar]

Sounds like the first chapters of AT THE MOUNTAINS OF MADNESS by H P LOVECRAFT.

[Hugin]

Or the John Carpenter remake of The Thing.

[Klemper]

“THEY” in trouble.

[abb]

http://www.jacklondons.net/buildafire.html

To Build A Fire

Day had broken cold and grey, exceedingly cold and grey, when the man turned aside from the main Yukon trail and climbed the high earth- bank, where a dim and little-travelled trail led eastward through the fat spruce timberland.