Teenagers from Outer Space

An agent from a distant planet has been sent to earth to ship large quantities of blood to his world, where a plague is ravaging the populace. He comes equipped with an interstellar matter transmitter, telepathic mind-control powers, and deathray-shooting eyes. Because he is also affected by the blood disease, he gains control of the town's physician and has him place a nurse at his disposal, while he collects live humans for fresh blood; but gains the nurse's suspicions, along with those of her boyfriend - a town police officer.

Atomic scientist/pilot Doug Martin is missing after his plane crashes on an reconnaissance mission after a nuclear test. Miraculously appearing unhurt at the base later, he is given sodium amethol, but authorities are skeptical of his story that he was captured by aliens determined to conquer the Earth with giant monsters and insects. Martin vows to use existing technology to destroy them.

A group of men who were clearing brush for the government arrive back in town, claiming that their friend was abducted by aliens. Nobody believes them, and despite a lack of motive and no evidence of foul play, their friends' disappearance is treated as murder.

In the early hours of the night, young David Maclean sees a flying saucer land and disappear into the sand dunes just beyond his house. Slowly, all of the adults, including his once loving parents, begin to act strangely.

Aliens from Outer Space are slowly switching places with real humans -- one of the first being a young man about to get married. Slowly, his new wife realizes something is wrong, and her suspicions are confirmed when her husband's odd behaviour begins to show up in other townspeople.

Eight people at a remote Scottish inn find themselves confronted by a woman from Mars, who has landed her flying saucer for repairs but intends to soon conquer the Earth and enslave its men for breeding purposes.

An alien and a robot land on Earth after World War II and tell mankind to be peaceful or face destruction.

Aliens have landed and are hiding on Earth, but need Earth’s scientists to help them fight an inter-planetary war.

Test space rockets exploding at liftoff and increased reporting of UFO sightings culminate in a direct attempt by alien survivors of a dead, extra-galactic civilization to invade Earth from impervious flying saucers, using ray-weapons of mass destruction.

Inept beings from the planet Kabijj land on Earth and attempt to behead all of its beings and take over the planet

Feature version of the 1938 film serial FLASH GORDON'S TRIP TO MARS. Flash Gordon fights Ming the Merciless once again to ensure the survival of the Earth.

Since the 1940's alien beings known as "GRAYS" have been sighted around the globe with the thought that they visit our planet to study our species and civilization before they eventually invade...but what if we're wrong? What if they are only here to protect us? After a meteorite crashes to earth awakening the extraterrestrial creature within, a young woman is abducted by an alien "GRAY" to aide in hunting down and destroying the creature before it can reach a second meteorite that fell to earth decades earlier unleashing its deadly infestation of earth.

When an atomic war on Mars destroys the planet's women, it's up to Martian Princess Marcuzan and her right-hand man Dr. Nadir to travel to earth and kidnap women for new breeding stock. Landing in Puerto Rico, they shoot down a NASA space capsule manned by an android. With his electronic brain damaged, the android terrorizes the island while the Martians raid beaches and pool parties

Tyler and his brother find an alien ship which makes Tyler appear older and gives him other abilities. This turns his high school life upside down, and may enable him to help his older brother's love life. After he is abducted by beings who intend to takeover Earth, he must depend on his inept and lovelorn brother to rescue him.

A space expedition to Uranus is menaced by a giant brain that can make illusions come true.

Five years later, 15-year-old Ben Tennyson chooses to once again put on the Omnitrix and discovers that it has reconfigured his Dna and can now transform him into 10 brand new aliens. Joined by his super-powered cousin Gwen Tennyson and his equally powerful former enemy Kevin Levin, Ben is on a mission to find his missing Grandpa Max. In order to save his Grandpa, Ben must defeat the evil Dnaliens, a powerful alien race intent on destroying the galaxy, starting with planet Earth.

In the near future, planet Earth is permanently altered following the sudden—and tumultuous—arrival of seven unique alien races. In the boom-town of Defiance, the newly-formed civilization of humans and aliens must learn to co-exist peacefully.

Years ago, the Taelons came to Earth, offering friendship and technology to humanity. But there are those who believe the Taelons have more sinister motives.

The Invaders, alien beings from a dying planet. Their destination: the Earth. Their purpose: to make it their world. David Vincent has seen them, for him it began one lost night on a lonely country road, looking for a shortcut that he never found. It began with a closed deserted diner, and a man too long without sleep to continue his journey. It began with the landing of a craft from another galaxy. Now, David Vincent knows that the Invaders are here, that they have taken human form. Somehow he must convince a disbelieving world that the nightmare has already begun.

The space family Robinson is sent on a five-year mission to find a new planet to colonise. The voyage is sabotaged time and again by an inept stowaway, Dr. Zachary Smith. The family's spaceship, Jupiter II, also carries a friendly robot who endures an endless stream of abuse from Dr. Smith, but is a trusted companion of young Will Robinson

Fifty spaceships, each three miles across, hover ominously above Earth's major cities. The Visitors that emerge are humanlike in appearance and extend the hand of friendship. Our planet's resources are just what these aliens need to survive. And for its future survival, unsuspecting humankind will need... a miracle!

Once again, Earth is the battleground. But now the aliens whose human guise hides their true reptilian natures are wiser. They believe the secret to their survival on Earth lies in the DNA of the newly born half-human, half-spaceling Starchild. But that's something the world's Resistance Fighters cannot allow.

Robotech is an 85-episode adaptation of three different anime television series made between 1982-1984 in Japan; the adaptation was aired in 1985. Within the combined and edited story, Robotechnology refers to the scientific advances discovered in an alien starship that crashed on a South Pacific island. With this technology, Earth developed giant robotic machines or mecha to fight three successive extraterrestrial invasions.

Tattooed Teenage Alien Fighters From Beverly Hills is an American television series which was released by DIC Entertainment and aired on the USA Network during the 1994–1995 season. The show was a low-budget attempt to emulate the success of Saban's Mighty Morphin Power Rangers. The lower budget is evident from the installments having been produced using videotape rather than more expensive film stock.

A secret, high-technology international agency called SHADO defends Earth from alien invaders.

10,000 years ago, amidst a war that spanned millennia, the Kherubim and Daemonites crashed on the planet Earth. While the Kherubim assimilated, the Daemonites carried their plans of domination underground, until which time they could resurface and conquer not only Earth… but the entire galaxy. Now… the time has come, necessitating the Kherubim and their descendants to emerge, mobilize and form the Covert Action Teams (WildC.A.T.s). Their mission: to fight the evil Daemonite forces and ensure the safety and sovereignty of the planet. Watch how it begins and ends as Warblade, Zealot, Grifter, Spartan, Voodoo, Maul, and Void go head to head with Lord Helspont and the evil Daemonites to determine the fate of the universe.

In the year 2089, an alien race stalks the land in towering machines known as Tripods. They have taken over the earth and enslaved mankind with a mind-controlling device, ceremoniously implanted at adolescence. Will Parker, desperate to escape this ritual, leaves the village with his cousin, Henry and attempts to link up with the human resistance movement.

In Edwardian England, George and his partner Amy attempt to defy society and start a life together as they face the escalating terror of an alien invasion, fighting for their lives against an enemy beyond their comprehension.

After a massive alien artifact lands on Earth, Niko Breckinridge leads an interstellar mission to track down its source and make first contact.

An underdog teen joins a group of young Cadets who've been chosen to bond with Robo Mechs from space and defend Earth against alien invaders.