High in the Rocky Mountains A small hunting party becomes stuck as a snowstorm begins to roll in. They decide not to risk a bad fall, trying to come down from the mountains during a blizzard. One of the older hunters leads them to an old abandoned cabin where they can wait until morning to leave for home. A Stranger Appears From Nowhere As he introduced himself, Jack Townsend asked if the group would be so kind as to allow him to stay with them. The doctor in the hunting party, Oliver Murdock, convinces the rest of the group to let Jack stay. Something about this man intrigues him, but he's also leery of him. There's an air of danger and mystery surrounding the man, but Oliver has always tried not to judge people without getting to know them better. The Night Turns Deadly What started as a quiet night waiting out a blizzard turned into a night full of terror. The men begin to turn on each other viciously before dying horrendously. Despite being a highly trained physician, Oliver had no idea what was happening to them. Jack, however, did. Should Oliver trust this stranger to stop this contagion? It could mean all of their deaths if he doesn't.