In the mountains outside Buckland, Alaska, mind-controlling creatures are attacking the crew on an oil-drilling site. Some they cocoon, others they eat. The attacks are just beginning...The fate of mankind is about to change forever. In the brutal dead of winter in Alaska, the absence of sunlight can drive a person crazy. The crew on an oil-drilling rig accidentally pierces a sphere hidden deep within the earth. Now, deadly monsters have been unleashed and the crewmembers are starting to disappear, one by one. In a desperate race for survival, the battle has just begun.