A group of paranormal investigators enter the abandoned home of paedophile and serial killer John Gacy, hoping to find evidence of paranormal activity. Upon entering the house they set-up cameras throughout the abandoned house while going room to room with hand-held cameras, performing séance's and asking for John Gacy to come forward. As the evening progresses it seems the investigators are not prepared for the horror still within the house.

After an accidental explosion at a local mine, dinosaurs emerge from the rubble to terrorize a small western town. Now, a group of gunslingers must defend their home if anyone is going to survive in a battle of cowboys versus dinosaurs.

故事发生在2012年12月，一家人正在度假。没想到根据玛雅预言，2012年的12月21日，正是世界末日，玛雅人的日历也到那天为止，再没有下一页。人类要如何才能阻止一切被毁灭呢？