During a time when strange atmospheric disturbances are occurring at various locales around the globe, a group of teenagers go on a vacation trip to a secluded cottage in the woods. At a filling station along the way they have a bad encounter with a man who calls himself "The Hunter". At the cottage, the teenagers begin exploring and come across a seemingly abandoned cabin. Inside, they find pictures and realize it's the Hunter's house, and furthermore, that he was formerly an astronaut. When he returns unexpectedly they sneak out and run away. That night, when the Hunter shows up in the woods outside their cottage, they believe he is there to attack them. One of them, Rob, goes to the car to get his gun, but on the way back he sees an alien under the porch and panics but he doesn't tell his friends. Later, during the atmospheric disturbances, they see a glow of light. Only Kara seems to know what it is, and seems terrified of it. When an alien enters the house, Rob panics and accidentally shoots Kara. He breaks down and turns on his friends. Charlie stops him by rendering him unconscious. The remaining friends run for the car and drive away in panic. When Rob suddenly appears in the road, Charlie swerves to avoid him and crashes the car. They watch from the wreckage as a UFO appears and abducts Rob, allowing the others to make their escape. Unbeknownst to the teenagers, the Aliens have come to Earth, abducting thousands of humans. On the run from the aliens with the others, Brendan is injured by a bear trap placed by the Hunter. The Hunter appears and saves them from a pursuing alien, and takes them back to his cabin. The Hunter ambushes an alien in a pit and seems to take personal pleasure in killing it. The Hunter explains that he was abducted and experimented-on by the aliens years ago. He shows them scarifications left on his body by the aliens; furthermore, he demonstrates that he can move objects telekinetically. He explains that the aliens have visited Earth several times in the distant past, and through "enhancements" made to abductees, have controlled the evolution of life on Earth. Since his retirement as an astronaut he has been preparing for their return, dedicating himself to putting an end to their reign. But the aliens besiege the cabin and the teenagers all end up being taken up to the spaceship, where they are among a few thousand humans who are abducted, experimented on, then returned to Earth. The teenagers all wake up back at their cottage, with no memory of having been abducted or experimented on. Kara, who had been killed, also appears to be alive and well. On the road, they are stopped by a military roadblock; although the alien ships have departed as mysteriously as they'd arrived, the government has responded to the mass abductions by putting a plan in place to quarantine anyone who shows the telltale scarifications from having been abducted. When the soldiers attack, the teenagers survive and use their alien-given "enhancements" to slaughter the soldiers, instead.
