The genesis of the novel was in two Doctor Who serials written by Adams, City of Death, ( in which an alien tries to change history at the cost of erasing humanity from existence ), and in particular the cancelled serial Shada, which first introduces a Cambridge professor called Chronotis who is hundreds of years old.

After the success of Squee !, the children's cable network Nickelodeon approached Vasquez about producing an animated television series, Invader Zim which airs on Nicktoons currently, focused on the daily life of Zim, a naïve alien from the planet Irk who tries to conquer Earth, before his attempts are constantly thwarted in a humorous manner by Dib, a young paranormal investigator and the only one ( along with his sister Gaz ) who knows with certainty Zim is an alien ( although no one believes him ), or by his own naïveté.

Unknown to them, the alien immediately kills and then imitates the crew's physicist, a man named Connant ; with some 90 pounds of its matter left over it tries to become a sled dog.

The film relates how Lilo befriends a strange and destructive blue alien thinly disguised as a dog, whom she calls " Stitch ", and how she tries to teach him how to behave using Elvis Presley music as exemplars.

Salvo's group is forced to split, and he tries to escape with his wife and daughter using one of the alien spaceships, but he accidentally triggers a time traveling apparatus in the craft.

Before Alex can reply, the Xandoxan -- mentally controlling its severed arm -- tries to shoot Alex, but Centauri intercepts the blast and returns fire, incinerating the alien.

Each episode of the series had the fugitive father and son moving from place to place ( in a format similar to The Fugitive, Kung Fu and The Incredible Hulk ) meeting people that were in need of some assistance, while Scott tries to explain to his alien father what it means to be a human being.

The alien tells him that the planet will explode if anyone tries to land down on Epsilon III.

He tries to convince a suspicious G ' Kar to sign a joint declaration of support for Sheridan's crusade to liberate Earth ; he believes that if two old enemies such as the Narn and Centauri can agree to support Sheridan it may convince other alien races to do the same.

Patrick hides the rapidly growing alien children inside a remote shed and, the next day, tries to confide in his father, an ambitious U. S. Senator, who ignores his problems.

The alien that Tegan and Nyssa met reveals himself as Mawdryn, and tries to convince the Doctor to give up his remaining regenerations to kill Mawdryn and his fellow sufferers.

Molly grabs a rifle and tries to shoot Trumpy, but Tommy protects his alien friend and hustles Trumpy into the woods.

Enemy Ace tries to shoot down Batman's Batplane before he convinces him to team up to destroy an alien cannon.

McIntosh tries to scare the juvenile delinquents by using movie references such as being arrested because he tried to hide an alien trying to phone home from the government.

Kirk tries to calm her down telling her there are no such camps, and that an alien force is behind what is going on.

* " Circus "-a very human-like alien is stranded on Earth, and futilely tries to convince Earthlings that he is an authentic extraterrestrial.

They try to get to the spaceship to kill the alien, but Mizoguchi arrives and tries to take the facility over.

The galactic military tries to fight the alien, but to no avail as Parasitis destroys the entire galactic military, except for one hospital ship.

Later on, an alien sorcerer named Sden tries to trick the Legion into retrieving yet another artifact, again with the goal of defeating Mordru.

Strong, a former member of Army intelligence, tries to convince the members of the committee that a number of different alien invasions of Earth are occurring, and demands an official investigation and response to the threats.

The team tries to make contact with the " alien team " to explain the situation and ask for peace.

Skokes grabs her arm and tries to forcibly rip the graft from her arm — suddenly the huge alien guard appears and drags the cadet out of the cell.

The alien creature, with all pretense dropped, changes into its natural form and tries to take over Ed.

In the alternate future depicted in Marvel 2099, an alien attack floods much of the earth rendering the Savage Land the only inhabitable space.

According to this series, an area of Earth stretching from Florida to Venezuela will be devastated by an alien attack in 2153, resulting in the death of 7 million people.

* Captain Scarlet and the Mysterons ( 1967 – 1968 ) – The Martians at war with Earth are the Mysterons — an invisible race of superbeings hell-bent on revenge after an unprovoked attack on their Martian city by Captain Black, a Spectrum agent investigating strange alien signals.

Along the way, she picks up several survivors and also finds the injured First Lady ( Mary McDonnell ), who had been flying out of Los Angeles by helicopter when it was knocked down in the alien attack.

Casse has the last missile, but it jams, so he flies his aircraft into the main weapon bay in a suicide attack, triggering a chain reaction that destroys the alien ship.

Sensing an attack, the alien sprays a toxin into Morgan's face.

In which the alien invaders are supernatural or otherwise religious-inspired demonic beings, who infiltrate the Earth, attack mankind, take over human society ( disguised as humans themselves ), and declare war upon the saints, fulfilling the events described in the Book of Revelation or another religious prophecy, occasionally created for the story itself.

In these films, alien races take control of earth's monsters and use them to attack and destroy Earth's major cities, but are usually ironically defeated by the monsters themselves.

Jeff informed her that Deneb was under attack by hostile alien forces.

Searching among various alien races for the reason for this, one group are shown an interview with a merchant who apparently sold " crustal disruptor " devices to various nations to use as a deterrent, with the devices being triggered by a nuclear attack on the owning nation.

* In the manga Gantz, there is a group of Zaibatsu who control multiple black balls and launch an attack on the alien ship twice.

But, with the warning from a small alien from the future, a young hero named Ness saved the world from Giygas before he could attack.

Its qualities render it practically invisible to radar, enabling her to survive the initial alien attack and give her the opportunity to make light ground attacks on unsuspecting Race encampments.

" Twenty-seven years before the beginning of the game, a technologically advanced collective of alien races, the Covenant, began to attack human settlements, declaring humanity an affront to their gods.

Ten years after the time EarthBound takes place, Giygas succeeds in conquering the universe, but a friendly alien traveled back in time to warn Ness of Giygas ' attack on the Earth.

After they leave, the starfighter base is attacked-a saboteur eliminates the base's defenses, causing the base to sustain heavy damage, killing all starfighters save for a friendly reptilian alien navigator named Grig ( Dan O ' Herlihy ), and destroying all Gunstars, save for an advanced prototype that Grig was servicing at a different location at the time of the attack.

The essay began as an attack on Jewish composers, particularly Wagner's contemporaries ( and rivals ) Felix Mendelssohn and Giacomo Meyerbeer, but expanded to accuse Jewish influences more widely of being a harmful and alien element in German culture.

When an alien race's experiments in eternal universal observation cause damage to Eternity, he is narrowly saved by the actions of the Fantastic Four, Doctor Strange, Black Panther, Storm, Gravity and the Silver Surfer, Strange using Gravity as a ' scalpel ' based on his gravity-wielding powers to cut out the damaged portions while Storm serves as a temporary host to Eternity's consciousness as the other heroes hold back the universe's ' antibodies ' as they try to attack the perceived cause of the damage.

Early warnings of alien attack would come from SID, the Space Intruder Detector, a computerised tracking satellite that constantly scans for UFO incursions.

In Half-Life, the player takes on the role of Gordon Freeman, a scientist involved in an accident that opens an inter-dimensional portal to the borderworld of Xen, allowing the alien creatures of Xen to attack the facility.

However, as they are nearing their Landing Zone at Black Mesa, airborne alien creatures attack the Osprey formation, causing Shephard's Osprey to crash land.

Vince Grant in the cruiser Icarus attempts a rescue mission but they come under attack from unknown alien forces, and the mission fails.

Ariel's warning is only realized to be accurate when Space Station Liberty comes under attack a large fleet of the same unknown alien forces that attacked the SDF-3 in the Omicron sector.

* Free Flight: Player freely cruises the galaxy and learns the large array of controls and computer interfaces without fear of attack by alien craft or pirates.