During the reign of the Vikings, a man from another world crash-lands on Earth, bringing with him an alien predator. The man must fuse his advanced technology with the weaponry of the vikings to fight the monster.
During a blizzard in 1964, Dr. David Henry delivers his son Paul with the help of nurse Caroline. But when Henry realizes his wife is also carrying a girl with Down syndrome, he hands the second child over to Caroline without his wife's knowledge. Henry's fateful decision yields grave consequences...
A crew of student filmmakers embark on a road trip when they discover odd events and people acting strangely around them. Soon, they realise that sinister doppelgangers have invaded the town.