A weekend at a lake house in the Louisiana Gulf turns into a nightmare for seven vacationers as they are subjected to shark attacks.

At an Antarctica research site, the discovery of an alien craft leads to a confrontation between graduate student Kate Lloyd and scientist Dr. Sander Halvorson.

While attending a bachelor party in Las Vegas, four friends are enticed by two sexy escorts to join them at a private party way off the Strip. Once there, they are horrified to find themselves the subjects of a perverse game of torture, where members of the Elite Hunting Club are hosting the most sadistic show in town.

Donner Pass has a well-known and macabre history - the place where George Donner and his party got stuck in the winter of 1846 and were forced to resort to cannibalism to keep from starving. But what if it wasn't just history?

A group of young adults set up tent near the abandoned summer camp where a series of gruesome murders are said to have taken place back in 1980. The perpetrator was a grieving mother, driven insane by the drowning of her child, Jason, whom she believed was neglected by the camp counselors. As legend has it, the last survivor of the attacks beheaded the woman. But then Jason came back, and now he is a vengeful and inexorable killer, wielding crossbows, swords, axes and other sharp instruments. The legend proves horribly true, as these campers quickly discover. Six months later, the brother of one of those campers distributes posters of his missing sister. The police believe she took off with her boyfriend; but he knows better. The brother crosses paths with an uptight young rich guy who is having his girlfriend and friends over at his parents cabin. The brother ends up at the cabin himself just before his sister s attacker sets upon them all.