Alien (Teenagers from Outer Space)

This unnamed humanoid species came to Earth with the intent of using the planet as a grazing ground for Gargons, land-dwelling lobster-like creatures native to their homeworld. Gargons grow to great size and are thus a threat to the aliens. The plan is to relocate Gargons, an essential food source, to another planet from which they can be harvested without threat to the alien civilization.

Biology
The aliens appear externally identical Humans, and are able to survive in an Earth-like environment, although their homeworld appears to have had a smaller amount of nitrogen in its atmosphere than Earth.

Culture and society
The society of these aliens is one where individuals are grown in test tubes not knowing their parents, and raised only by select members of society. Despite this, leadership seems to be hereditary, with the next heir unknown to the public until the time of succession arrives. The government appears to possess a body known as the High Court at one of its highest levels, likely functioning as the top of their legislative branch, and their executive branch is headed by a single leader. Their society teaches that their kind are a superior master race who should not concern themselves with lesser beings. The sick and elderly are killed off for the sake of keeping the species strong. However, a faction of their population has learned of a past that was friendlier and compassionate, with families and siblings, via reading a book, seeking to return to that past. With the death of the heir and leader, it's possible that a revolution will take place resulting, in returning to how things use to be.

Spaceship crews, often made up of teenagers, were known to readily incinerate any foreign lifeforms they come across. In addition, they are known to wear jumpsuit-like uniforms with a black belt and a design on their chest resembling a white triangle, pointing down, with captains bearing a second, smaller triangle closer to their neck.

Name-wise, the species uses names like Derek, Thor, and Sol, and they have developed a language identical to English. Their numerical system is also identical to that used on Earth, as are their letters. However, Derek had trouble determining what the words on a dog tag mean; which is easily explained in that some aspect of it is not relatable to his society. Family names would be one such factor unfamiliar to him, as his society has eliminated family names.

Technology
The aliens possess 'Focused Disintegrators'- ray guns that can quickly incinerate flesh and muscle, or cause other matter to catch fire. They consider bullets to be primitive. They utilize flying saucers to travel between planets, connected to their superiors with 'radiovision'- a technology where sound and images are broadcasted wirelessly as a form of two way communication. This is comparable to Human video calling, except it's based on radio waves. They have been seen using helmets for protection in unknown atmospheres, which resemble certain models of fighter pilot helmets, colored white. These helmets have hoses connected to their mouthpieces, connected to breathing tanks. Strangely, the helmets alone are worn with no visible suit, implying that their very uniforms are capable of sealing airtight when their helmets are on. Other technologies used by this species include bulky scanning technologies and "expandable link-bands," the latter of which can hold down Gargons.

History
At some point in the past, the alien society was one close to common Earth societies, and appeared rather friendly. They would commonly farm and harvest creatures known as Gargons for food, despite the potential threat the Gargons posed. However, their society was then overtaken by an authoritarian regime seeking to make their species into a perfect, supreme race. Traditional family structures were abolished, as was traditional methods of reproduction, replaced with artificially growing new offspring, who would then be raised with no knowledge of their parents or their family. Other methods of unethical population control and indoctrination to an ideology of superiority were also put into action. The establishment of the regime appeared to have been quite violent, with units known as "Annihilators" used to eradicate resistance and other forms of dissent, but certain texts of the time before the regime survived, collected into small books kept by dissidents. The alien regime lasted for many centuries, and by the mid-20th century, the aliens sought to relocate the Gargons from their planet to another habitable world, as the Gargons were posing a threat to their civilization. To accomplish this, crew of four teenagers were assigned to a captain and sent to find a habitable planet, codenamed Expedition Zeal-6, and unknown to them, one of their members, Derek, was the son of their leader, and a dissident who truly cared for other lifeforms, having had found one of the dissident books that survived the regime's formation. Other crewmen included Thor, Sol and Morro. After finding many uninhabitable worlds, they came across Earth, landing in an empty field. A dog named Sparky from a nearby town ran to their ship, barking at them. Thor was the first to exit the ship, brandishing a disintegrator, and quickly incinerated the Sparky's flesh and muscle. Afterwards, he removed his helmet, as the scans said Earth was hospitable to them. The rest of the crew disembarks, observing the environment, but Derek soon notices the dog's tag, realizing that only an intelligent being could've written it. Feeling sorry for the dog and knowing that releasing the Gargons would doom any native intelligent species, Derek attempted to call off the expedition, but the crew and captain refused. Derek then pulled his own disintegrator on the captain, making his demands again and showing the dissident book. The captain remained unmoved, still firm in his beliefs, and then tricked Derek by asking to see the book, giving him and Thor the opportunity to disarm Derek. Derek attempted to reason with the captain again, but the captain still refused to listen, having Thor hold Derek captive as he and the other crewmen took a small Gargon they were carrying in their ship out to the surface, analyzing the atmosphere's effects on it. Although the Gargon initially appeared to be thriving in the atmosphere, it suddenly went limp, with the crew believing it had died due to Earth's higher nitrogen levels. While Morro packed the equipment, Thor and Sol were ordered to bind Derek, and the captain went to speak with the leader about Derek's treachery via radiovision. As Thor went to get the bindings, the captain was soon informed that Derek was the leader's son, and was ordered to bring Derek in alive. While Sol was distracted trying to help Morro with some equipment, Derek ran off, and the captain narrowly stopped Thor from shooting Derek, relaying the revelation to them. The crew then noticed the Gargon awaken, rejuvenated by the atmosphere. Morro and Sol were ordered to secure the Gargon as the captain returned to the radiovision call with the leader, with Thor listening in. The leader ordered the captain to leave his best man on Earth to find Derek and inform him of his parenthood, arranged to personally accompany the captain on the return trip with an invasion fleet and Gargon herds, and said that if Derek refuses to comply, he and any natives with him are to be destroyed. Thor volunteered to stay on Earth and search for Derek.

Derek ran to a nearby Human town, passing by a group of children and reaching a gas station, where he asked the attendant what the words on Sparky's tag meant. The attendant pointed him towards the address, which Derek soon found. The occupant, Betty Morgan, assuming he was there for a room her grandpa was renting, inviting Derek inside. She introduced Derek to her grandpa, and was surprised by Betty describing her parents and siblings. Meanwhile, Thor began his search, wandering down a road. A Human man, assuming Thor was a hitchhiker, stopped for him, and Thor, deciding that the Human could prove useful in finding Derek, agreed to a ride to the same town. Arriving in town, and confusing the driver with his questions about the car's workings, the driver stopped for gas, noticing Thor's uniform and unknowingly tipping Thor off to Derek's presence. Thor forced the attendant to tell him where Derek went, then disintegrated the attendant and the driver, commandeering the car with the knowledge he got from questioning the driver. Back at Betty's house, Derek agreed to stay in their room, being provided new clothes. Betty, seeing how Derek had no belongings and appeared very lost, decided to befriend him, teaching him how to drive and taking him swimming.

Appearances

 * Teenagers from Outer Space (1959)