Astronomer Shinichi Tachibana has a secret identity as the superhero "Iron Sharp" and is well beloved by children. When they are attacked by a group of metallic aliens, Iron Sharp drives the aliens away. The resourceful Tachibana helps develop an electric barrier to block the aliens from coming to the Earth. After several losses by the aliens, they announce that they will invade the Earth, throwing the world into a state of panic.
Hans von Arnam travels to a Flemish village to study a strange carousel located in an old windmill that displays famous murderesses and other notorious women from history. Professor Gregorius Wahl, owner of the windmill, warns Hans to stay away from his mysterious daughter Elfi, in order to keep Hans from discovering the horrible secret shared by the Professor and Elfi's Doctor.
A mysterious magnetic spool found during a construction project is discovered to have originated from Venus. A rocket expedition to Venus is launched to discover the origin of the spool and the race that created it.
Landed on the moon, Capt. John Anderson and his fellow astronauts quickly find their mission threatened – first by the disappearance of two team members, then by a troubling interaction with aliens who appear to be living within the moon itself. The aliens have weapons that could plunge parts of Earth into another ice age, and they're aiming for the United States.
An ex-major forces a scientist to develop a invisibility formula, with which he plans to create an invisible army and sell it to the highest bidder. However there are side effects to the formula.
In 1965, the space station JSS-3 is destroyed by a fleet of UFOs, which then begin a global siege on Earth, using rays to manipulate gravity and control the minds of men. In response, a global council meeting is held to determine the source of the attacks and prepare a rocket ship armada for a counter-attack, a true battle in outer space. . . The film is a sequel of sorts to Toho's THE MYSTERIANS in the reprise of the Etsuko Shiraishi character of that film as its heroine. It was edited to 74 minutes for its American release.
The head of a major cosmetics company experiments on herself with a youth formula made from royal jelly extracted from wasps, but the formula's side effects have deadly consequences.
A backwoods game warden and a local doctor discover that giant leeches are responsible for disappearances and deaths in a local swamp, but the local police don't believe them.
A Soviet scientific expedition is being prepared as the world's first mission to planet Mars. Their space ship Homeland has been built at a space station, where the expedition awaits the command to start. An American ship Typhoon experiencing mechanical problems arrives at the same space station, secretly having the same plans for the conquest of the Red Planet. Trying to stay ahead of Soviets, they start without proper preparation, and soon are again in distress. The Homeland changes course to save the crew of Typhoon. They succeed, but find that their fuel reserves are now insufficient to get to Mars. So Homeland makes an emergency landing on an asteroid "Icarus" passing near Mars, on which they are stranded. After an attempt to send a fuel supply by unmanned rocket fails, another ship Meteor is sent with a cosmonaut on a possibly suicidal mission, to save the stranded cosmonauts.
A pathologist experiments with a deaf-mute woman who is unable to scream to prove that humans die of fright due to an organism he names The Tingler that lives within each person on the spinal cord and is suppressed only when people scream when scared.
A scientist invents a serum that keeps a dog's head alive after its body dies. When the scientist dies of a heart attack, his crazed assistant cuts off his head and, using the serum, keeps the doctor's head alive and forces it to help him on an experiment to give his hunchbacked nurse assistant a new body.
In California, an old man grieves the loss of his wife and on the next day he also dies. However, the space soldier Eros and her mate Tanna use an electric device to resurrect them both and the strong Inspector Clay that was murdered by the couple. Their intention is not to conquest Earth but to stop mankind from developing the powerful bomb “Solobonite” that would threaten the universe. When the population of Hollywood and Washington DC sees flying saucers on the sky, a colonel, a police lieutenant, a commercial pilot, his wife and a policeman try to stop the aliens.
Trapped on a remote island by a hurricane, a group discover a doctor has been experimenting on creating half sized humans. Unfortunately, his experiments have also created giant shrews, who when they have run out of small animals to eat, turn on the humans.
A small town in Texas finds itself under attack from a hungry, fifty-foot-long gila monster. No longer content to forage in the desert, the giant lizard begins chomping on motorists and train passengers before descending upon the town itself. Only Chase Winstead, a quick-thinking mechanic, can save the town from being wiped out.
A young alien falls for a pretty teenage Earth girl and they team up to try to stop the plans of his invading cohorts, who intend to use Earth as a food-breeding ground for giant lobsters from their planet.