A group of teenagers at a party find themselves being stalked by a maniacal killer in a Santa Claus costume.
An escaped mental patient steals a station wagon and makes his way to the Bradleys' Thanksgiving celebration, where he plans to make them a little less thankful...
The USA is attacked by a large group of well organized terrorists who communicate through a computer network via satellite. A bunch of highschool kids has hacked the password and gained access. Believing it's a game they unknowingly cause terror acts all over the country. An anti-terror force fights against the terrorists.
