Kol (Ross Hagen), an alien criminal, escapes from a spaceship into the woods of an American suburb. The commander (Jan-Michael Vincent) of the spaceship dispatches The Alienator (Teagan Clive) -- a deadly female gynoid, to capture Kol. He meets up with some teenagers as they are all running from fiery death at the hands of The Alienator. She relentlessly pursues Kol and the teens through a series of action sequences and low budget special effects. Kol must face the toughest decision of his life: kill or be killed.
In the near future (2018), a prisoner named Dante (William Miller) escapes from jail after having been arrested for illegally entering Spain. Forced to kill a prison guard, he is hunted down by the prison's dog, a monstrous Rottweiler police dog that sadistic prison warden Kufard (Paul Naschy) had revived and cybernetically enhanced after a fatal injury. Believing his Spanish girlfriend Ula (Irene Montala) was sent to work as a prostitute in Puerto Angel as punishment, Dante looks for her, but is exhausted by the chase and wounded by the Rottweiller. As a result, he starts having hallucinations and being haunted by the repressed memories of his and Ula's arrest. As he reaches Puerto Angel and can't find her at the brothel, he finally remembers that Ula got killed when Kufard let his dog loose on her, which led Dante to shoot the dog, which was then turned into a cyborg. Dante kills Kufard as the Rottweiler catches up with him, and they fight to the death among the burning remains of Kufard's helicopter. The morning after, firemen find the skeletons of Dante, Ula and the Rottweiler on the beach.
Evil Moon robot Ro-Man Extension XJ-2 (George Barrows), referred to as just Ro-Man, has seemingly destroyed all human life on Earth with a Calcinator death ray, all except for eight humans that remain alive. The survivors are an older scientist (John Mylong), his wife, two daughters, his young son Johnny (Gregory Moffett), his assistant, and two space pilots that shortly take off in a spaceship for an orbiting space platform. All eight have now developed an immunity to Ro Man's death ray, having received an experimental antibiotic serum developed by the scientist.
One of four low-budget Italian science fiction movies produced in the wake of Star Wars by Italian director Alfonso Brescia (under the pseudonym Al Bradley), the film takes place on Earth (now renamed "Sol 3") in the year 2312.
The story involves the people of Mars, including Momar ("Mom Martian") and Kimar ("King Martian"). They're worried that their children Girmar ("Girl Martian") and Bomar ("Boy Martian") are watching too much Earth television, most notably station KID-TV's interview with Santa Claus in his workshop at the North Pole. Consulting the ancient 800-year-old Martian sage Chochem (a Yiddish word meaning "genius"), they are advised that the children of Mars are growing distracted due to the society's overly rigid structure; from infancy, all their education is fed into their brains through machines and they are not allowed individuality or freedom of thought.
The evil Dr. Krupp (Luis Aceves Castañeda), also known as "The Bat", plots to steal a valuable Aztec treasure from the tomb of a centuries-old living mummy, Popoca (Angel di Stefani). Krupp builds a robot to defeat the mummy. Krupp's former colleague Dr. Eduardo Almada (Ramón Gay) and associates work to stop the mad scientist from creating his robot.
Neo, a drifter from the atomic-blasted wastelands, and his klutzy robot sidekick arrive at a factory where slaves labor to fuel the Dark One's Power Station. He meets a woman who convinces him to help rescue her father, a scientist who invented a device that can break the Dark One's control over the factory slaves. Gathering a motley crew of allies on the way, Neo goes to the Power Station to confront the Dark One's evil servants.
On Life Day, Chewbacca, accompanied by Han Solo, is headed home to see his family. Along the way, the duo are chased by two Star Destroyers, but they escape into hyperspace.
The film takes place at an undetermined point in the future, when humanity has developed advanced robotic technology with enhanced artificial intelligence. This includes the use of cybernetic organisms (or cyborgs) called the TR-4 (all TR-4s are played by Paul Logan) for general labor. After being reprogrammed by the newest model TR-5, the machines instigate a cybernetic revolt against humanity, bombing cities and sending thousands of armed, identical TR-4 androids to eradicate all human life.
Taking place three hundred years prior to the events of the first film, the narrator describes how the government knew what was happening. A woman is seen driving recklessly in California while arguing over her cell phone. Police officer Ryan Hadley (Bruce Boxleitner) pulls her over and gives her a warning. The man calls her back, but she tells him off and throws the phone down; the phone then transmorphs into a robotic spider and kills her.