The Alien Conspiracy: Grey Skies (2003)

On July 2, a giant alien mothership enters orbit around Earth and deploys several dozen saucer-shaped 'destroyer' spacecraft that quickly lay waste to major cities around the planet. On July 3, the United States conducts a coordinated counterattack that fails. On July 4, a plan is devised to gain access to the interior of the alien mothership in space, in order to plant a nuclear missile.

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

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.

When Earth is attacked by a hostile alien force, a small town firefighter and a rogue SETI scientist team up to activate the only technology capable of defeating the invaders.

After an encounter with UFOs, an electricity linesman feels undeniably drawn to an isolated area in the wilderness where something spectacular is about to happen.

After an alien ship crash lands in a Russian city, many who see the inside and the occupants start to question their own existence while others demand the aliens leave Earth.

A representative of an alien race that went through drastic evolution to survive its own climate change, Klaatu comes to Earth to assess whether humanity can prevent the environmental damage they have inflicted on their own planet. When barred from speaking to the United Nations, he decides humankind shall be exterminated so the planet can survive.

When Earth is taken over by the overly-confident Boov, an alien race in search of a new place to call home, all humans are promptly relocated, while all Boov get busy reorganizing the planet. But when one resourceful girl, Tip, manages to avoid capture, she finds herself the accidental accomplice of a banished Boov named Oh. The two fugitives realize there’s a lot more at stake than intergalactic relations as they embark on the road trip of a lifetime.

A stranger stumbles into the desert town of Absolution with no memory of his past and a futuristic shackle around his wrist. With the help of mysterious beauty Ella and the iron-fisted Colonel Dolarhyde, he finds himself leading an unlikely posse of cowboys, outlaws, and Apache warriors against a common enemy from beyond this world in an epic showdown for survival.

Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.

Three young conspiracy theorists attempt to uncover the mysteries of Area 51, the government's secret location rumored to have hosted encounters with alien beings. What they find at this hidden facility exposes unimaginable secrets.

During the reign of the Vikings, a man from another world crash-lands on Earth, bringing with him an alien predator. The man must fuse his advanced technology with the weaponry of the vikings to fight the monster.

A team of American scientists investigate the empty, destroyed base of their Norwegian counterparts in Antarctica, only to discover a terrifying life force that can take the form of its prey.

Washington, D.C. psychologist Carol Bennell and her colleague Dr. Ben Driscoll are the only two people on Earth who are aware of an epidemic running rampant through the city. They discover an alien virus aboard a crashed space shuttle that transforms anyone who comes into contact with it into unfeeling drones while they sleep. Carol realizes her son holds the key to stopping the spread of the plague and she races to find him before it is too late.

The crew of the colony ship Covenant, bound for a remote planet on the far side of the galaxy, discovers what they think is an uncharted paradise but is actually a dark, dangerous world.

When Earth astronaut Capt. Chuck Baker arrives on Planet 51 -- a world reminiscent of American suburbia circa 1950 -- he tries to avoid capture, recover his spaceship and make it home safely, all with the help of an empathetic little green being.

An alien is left behind on Earth and saved by the 10-year-old Elliot who decides to keep him hidden in his home. While a task force hunts for the extra-terrestrial, Elliot, his brother, and his little sister Gertie form an emotional bond with their new friend, and try to help him find his way home.

A chief mechanic at a factory, haunted by apocalyptic nightmares, becomes a hero when Earth is invaded by a mysterious army bent on destruction.

When the crew of the Enterprise is called back home, they find an unstoppable force of terror from within their own organization has detonated the fleet and everything it stands for, leaving our world in a state of crisis. With a personal score to settle, Captain Kirk leads a manhunt to a war-zone world to capture a one man weapon of mass destruction. As our heroes are propelled into an epic chess game of life and death, love will be challenged, friendships will be torn apart, and sacrifices must be made for the only family Kirk has left: his crew.

When Ripley's lifepod is found by a salvage crew over 50 years later, she finds that terra-formers are on the very planet they found the alien species. When the company sends a family of colonists out to investigate her story—all contact is lost with the planet and colonists. They enlist Ripley and the colonial marines to return and search for answers.