TV series about aliens

Based on the books by Kass Morgan, this show takes place 100 years in the future, when the Earth has been abandoned due to radioactivity. The last surviving humans live on an ark orbiting the planet — but the ark won't last forever. So the repressive regime picks 100 expendable juvenile delinquents to send down to Earth to see if the planet is still habitable.

Defiance is an American science fiction television show that takes place in the future on a radically transformed Earth containing new species arriving from space. In the show, Joshua Nolan works as the lawman for the town of Defiance, a community where humans and intelligent extraterrestrial species coexist. The show follows Nolan, his adopted alien daughter Irisa, and the town's new mayor Amanda Rosewater.

When Emery was 6 years old, an alien spacecraft crash-landed in her small town. Whether they came in peace or with more sinister intentions didn't matter: a fierce battle erupted as humans fought for control over their new rivals, an alien species called the Atrians. In the midst of the conflict, Roman, a 6-year-old Atrian boy, found his way to a shed behind Emery's house, where she temporarily protected him from harm, bringing him food, comfort - and friendship. Ten years later, the Atrians have been acclimated to life on Earth, but they are interned in a heavily-guarded camp known as the Sector to keep them separate from humans. Now, for the first time, a group of Atrian teens will enroll in a suburban human high school, with the goal of testing the feasibility of human/alien integration. Emery and Roman find each other again in a school and a society that distrusts everything about the Atrians. While the world around them rages with anger and prejudice, their bond becomes increasingly strong and increasingly dangerous.

After reluctantly returning to her tourist-trap hometown of Roswell, New Mexico, the daughter of undocumented immigrants discovers a shocking truth about her teenage crush who is now a police officer: He’s an alien who has kept his unearthly abilities hidden his entire life. She protects his secret as the two reconnect and begin to investigate his origins, but when a violent attack and long-standing government cover-up point to a greater alien presence on Earth, the politics of fear and hatred threaten to expose him and destroy their deepening romance.

FBI Special Agent Olivia Dunham, brilliant but formerly institutionalized scientist Walter Bishop and his scheming, reluctant son Peter uncover a deadly mystery involving a series of unbelievable events and realize they may be a part of a larger, more disturbing pattern that blurs the line between science fiction and technology.

Crash-landed alien Harry takes on the identity of a small-town Colorado doctor. Arriving with a secret mission, he starts off living a simple life…but things get a bit rocky when he’s roped into solving a local murder and realizes he needs to assimilate into his new world. As he does, he begins to wrestle with the moral dilemma of his mission and asking the big life questions like: “Are human beings worth saving?” and “Why do they fold their pizza before eating it?”

A thriller set two hundred years in the future following the case of a missing young woman who brings a hardened detective and a rogue ship's captain together in a race across the solar system to expose the greatest conspiracy in human history.

A chronicle of the true top secret U.S. Air Force-sponsored investigations into UFO-related phenomena in the 1950s and ’60s, known as “Project Blue Book.”

Ten years before Kirk, Spock, and the Enterprise there was Discovery. Star Trek, one of the most iconic and influential global television franchises, returns 50 years after it first premiered featuring a new ship, new characters and new missions, while embracing the same ideology and hope for the future that inspired a generation of dreamers and doers.

When a young boy vanishes, a small town uncovers a mystery involving secret experiments, terrifying supernatural forces, and one strange little girl.

The Doctor looks and seems human. He's handsome, witty, and could be mistaken for just another man in the street. But he is a Time Lord: a 900 year old alien with 2 hearts, part of a gifted civilization who mastered time travel. The Doctor saves planets for a living – more of a hobby actually, and he's very, very good at it. He's saved us from alien menaces and evil from before time began – but just who is he?

Follows the crew of the not-so-functional exploratory ship in the Earth's interstellar fleet, 400 years in the future.

The adventures of a present-day, multinational exploration team traveling on the Ancient spaceship Destiny many billions of light years distant from the Milky Way Galaxy. They evacuated there and are now trying to figure out a way to return to Earth, while simultaneously trying to explore and to survive in their unknown area of the universe.

After crash-landing on an alien planet, the Robinson family fights against all odds to survive and escape. But they're surrounded by hidden dangers.

An astronaut returns home from a year long solo mission in space. She tries to reconnect with her husband and son in their everyday life. Her experiences in space and home lead to events that ultimately will change the course of human history.

V is an American science fiction television series that ran for two seasons on ABC, from November 3, 2009 to March 15, 2011. A remake of the 1983 miniseries created by Kenneth Johnson, the new series chronicles the arrival on Earth of a technologically advanced alien species which ostensibly comes in peace, but actually has sinister motives. V stars Morena Baccarin, Lourdes Benedicto, Morris Chestnut, Joel Gretsch, Logan Huffman, Charles Mesure, Elizabeth Mitchell, Laura Vandervoort and Scott Wolf, and was executive produced by Scott Rosenbaum, Yves Simoneau, Scott Peters, and Jace Hall. The series was produced by The Scott Peters Company, HDFilms and Warner Bros. Television.

Falling Skies opens in the chaotic aftermath of an alien attack that has left most of the world completely incapacitated. In the six months since the initial invasion, the few survivors have banded together outside major cities to begin the difficult task of fighting back. Each day is a test of survival as citizen soldiers work to protect the people in their care while also engaging in an insurgency campaign against the occupying alien force.

The Event is an emotional, high-octane conspiracy thriller that follows Sean Walker, an everyman who investigates the mysterious disappearance of his would-be fiancée Leila, and unwittingly begins to expose the biggest cover-up in U.S. history.

Torchwood is a British science fiction television programme created by Russell T Davies. The series is a spin-off from the 2005 revival of the long-running science fiction programme Doctor Who. Torchwood follows the exploits of a small team of alien hunters, who make up the Cardiff branch of the fictional Torchwood Institute, which deals mainly with incidents involving extraterrestrials.

Set in contemporary Europe, the reimagining follows the pockets of humanity left on earth following an apocalyptic extra-terrestrial strike.

A diverse anthology of ambitious, moving tales inspired by Philip K Dick's short stories.

Coal Hill School has been a feature of Doctor Who since the first episode, but now we get to see the day-to-day adventures of the students coping with intrusions from space and time.

400 years after the extinction of the human race, a small group of humans are revived by an alien civilization. The colony of revived humans encounter struggles with the aliens who extinguished humankind centuries before, while trying to understand and get along with the mysterious aliens who revived them.

The peaceful alien invasion of Earth by the mysterious “Overlords,” whose arrival begins decades of apparent utopia under indirect alien rule, at the cost of human identity and culture.

We love to play games with our children. But what happens when someone else starts to play with them too? Someone we don't know. Can't see. Can't hear. In The Whispers, someone or something -- is manipulating the ones we love most to accomplish the unthinkable. An unseen alien force has figured this human weakness out. They have invaded earth and are using our most unlikely resource to achieve world domination – our children.

When the Weavers move to a gated community in New Jersey, they discover that the entire neighborhood is comprised of aliens from the planet Zabvron. But as the Weavers and the aliens face the struggles of everyday life together, they discover that some things -- the ups and downs of marriage, the desire to be a good parent and raise a happy family -- are universal. Intergalactic, even.

A family of aliens from a much better world must take refuge in middle America after the destruction of their planet. Their mission: protect the Pupa, a living super computer that will one day evolve into its true form, consume them and terraform the Earth.

In the beginning, an "orb" is cast unto Earth. "It" can do two things: change into the form of the thing that stimulates "it"; and come back to life after death. "It" morphs from orb to rock, then to wolf, and finally to boy, but roams about like a newborn who knows nothing. As a boy, "it" becomes Fushi. Through encounters with human kindness, Fushi not only gains survival skills, but grows as a "person". But his journey is darkened by the inexplicable and destructive enemy Nokker, as well as cruel partings with the people he loves.

Two federal agents from two different continents, and two different mindsets, must work together to investigate when wreckage from a destroyed alien spacecraft has mysterious effects on humankind.