Scariest alien movies.

An Arizona logger mysteriously disappears for five days in an alleged encounter with a flying saucer in 1975. His co-workers endure ridicule and contempt as they are wrongly accused of murder.

After investigating a mysterious transmission of unknown origin, the crew of a commercial spacecraft encounters a deadly lifeform.

A family struggles for survival in a world invaded by blind alien creatures with ultra-sensitive hearing.

Following the events at home, the Abbott family now face the terrors of the outside world. Forced to venture into the unknown, they realize the creatures that hunt by sound are not the only threats lurking beyond the sand path.

A research team in Antarctica is hunted by a shape-shifting alien that assumes the appearance of its victims.

The residents of a lonely gulch in inland California bear witness to an uncanny and chilling discovery.

A widowed former reverend living with his children and brother on a Pennsylvania farm finds mysterious crop circles in their fields, which suggests something more frightening to come.

Decades after surviving the Nostromo incident, Ellen Ripley is sent out to re-establish contact with a terraforming colony but finds herself battling the Alien Queen and her offspring.

As the Barrett family's peaceful suburban life is rocked by an escalating series of disturbing events, they come to learn that a terrifying and deadly force is after them, one which may have arrived from beyond the stars.

The unsolved mystery of a town in Alaska with an extraordinary number of disappearances during the past 40 years, with accusations of a federal cover up.

A group of friends venture deep into the streets of New York on a rescue mission during a rampaging monster attack.

Searching for a missing student, two private investigators break into his house and find a collection of VHS tapes. Viewing the horrific contents of each cassette, they realize there may be dark motives behind the student's disappearance.

A team of scientists aboard the ISS discover a rapidly evolving Martian predator that needs to be kept away from Earth at all costs.

Following clues to the origin of mankind, a team finds a structure on a distant moon, but they soon realize they are not alone.

The crew of a colony ship, bound for a remote planet, discover an uncharted paradise with a threat beyond their imagination, and must attempt a harrowing escape.

After a mysterious blackout, a son goes out to investigate and captures footage of actual aliens. When the aliens follow him and his brothers back to their home, all hell breaks loose.

After a massive thunderstorm, an eerie, unwavering fog descends upon a Maine community. Locals seek refuge in a grocery store from the monstrous creatures now roaming the countryside killing everyone they encounter.

A transport ship crashes and leaves its crew stranded on a desert planet inhabited by bloodthirsty creatures that come out during an eclipse.

A deadly entity from space crash-lands near a small town and begins consuming everyone in its path. Panic ensues as shady government scientists try to contain the horrific creature.

When strange seeds drift to earth from space, mysterious pods begin to grow and invade San Francisco, replicating the city's residents one body at a time.

An alien invasion threatens the future of humanity. The catastrophic nightmare is depicted through the eyes of one American family fighting for survival.

Zane, an astronomer, discovers intelligent alien life. But the aliens are keeping a deadly secret, and will do anything to stop Zane from learning it.

A group of scientists try to track down and trap a killer alien seductress before she successfully mates with a human.

A team of commandos on a mission in a Central American jungle find themselves hunted by an extraterrestrial warrior.

A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.