Fossils, spirits, oil............

One of the characters presently opines that Nature itself has turned against mankind. Documentation and research found in an abandonedshack in the middle of the Arctic by another team member suggest that the Earth is releasing 'The Last Winter'. This implies that the rapacious, virus-like behavior of oil-seeking humans has resurrected the 'ghosts' of the fossil-fuels being siphoned out of the ground. The chief catalyst here is allegedly the Spirit of the Wendigo. These ghosts and other bizarre occurrences kill off most of the remaining characters. In the penultimate scene, Hoffman must decide whether to fire a flare gun at a ghost stalking Pollack, or up into the air to summon help from a nearby town, opting for the latter. This action causes the apparition to focus on Hoffman instead of Pollack, and it grabs him and carries him off. The scene then segues into a montage of past life images which interrupt themselves long enough to reveal Pollack being attacked and presumably killed by a trio of spectral creatures.

The ending scene is that of the only surviving researcher, Abby Sellers, waking up alone in a deserted hospital with no recollection of arriving there. A news anchorman is broadcasting over a television in the waiting room about natural disasters occurring nationwide. She discovers a male employee who has committed suicide by hanging himself in one of the rooms. She proceeds outside, and the camera's perspective switches to a claustrophobic overhead shot that gives away very little of what she is witnessing. There are pools of water on the ground nearby. In the background she hears car alarms and the sound of the wind, as well as a fluttering noise similar to that made by the murderous "ghost" creatures further north in the Alaskan snow fields.