A mad stage hypnotist Dr. John Basso reverts his beautiful assistant Doreena into the physical form of a prehistoric sea monster she was in a past life. Using this power he attempts to find fame and fortune by predicting a series of murders and then using the monster to carry them out.
A teenage boy discovers that the planet Icarus is on a collision course with Earth by gazing through his telescope. Scoffed at by the scientific establishment, the boy is kidnapped and brought to a secret UN base in the Japan alps. He is immediately inducted into the secret program whose mission is to finish the Super-Destruction Beam cannon and destroy Icarus. The cannon is missing a special mineral for the lens. The team heads for a mysterious island in the middle of the Pacific. There they find ancient ruins of Atlantis but they are suddenly attacked by a strange drill shaped metal squid spaceship. It's commanded by the evil being Nazu who has engineered the collision with Icarus! He doesn't want to share the universe with humans and he really doesn't want the cannon finished. The action is on and the team discovers the Golden Bat who has been asleep for over 10,000 years awaiting this very moment to save the earth!
In the future world of the year 2087, freedom of thought is illegal and the thoughts of the world's populations are controlled by the government. A small band of "free thinkers" send a cyborg back in time to the year 1966 to prevent a scientist from making the breakthrough that will eventually lead to the mass thought control of the future. Our time traveler soon discovers he is not alone when government agents from the future try to prevent him from carrying out his mission.
While covering a test of guided torpedoes, two reporters believe they see what appears to be a strange-looking swimming creature. They investigate the matter further and discover that there is a race of fish-men living under the sea. The fish-men capture the pair and keep them prisoner in their underwater city.
Gamera escapes from his rocket enclosure and makes his way back to Earth as a giant opal from New Guinea is brought back to Japan. The opal is discovered to have been an egg that births a new monster called Barugon. The creature attacks the city of Osaka by emitting a destructive rainbow ray from his back, along with a freezing spray capable of incapacitating Gamera.
Dr. Frankenstein's Granddaughter Maria, and her brother assistant Rudolph, moved to the old west because the lightning storms there are more frequent and intense, which allows them to work on the experiments of their grandfather. But the experiments are failing and Rudolph's been secretly killing the corpses afterwards. Meanwhile, the Lopez family leaves the town because of the evil going on there
A spaceship is sent to Mars after an alien distress signal is picked up. They find one survivor, but when a crew member is found drained of blood it's evident they have rescued a bloodsucking monster. Uses footage from Encounter in Space (1963).
An evil brain from outer space unleashes monsters with deadly diseases on Earth with trying to conquer the universe. Superhero Starman must battle them all to save his planet.
A heavy condensation of the original serial compresses the original thirteen episodes into an efficient 97 minute feature. Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth. Luckily, heroic young Flash Gordon is on hand to lead an investigative mission into outer space and onto the speedily approaching planet. There, he and his best girl, Dale, who is along for the ride, learn that Ming, the devious ruler of Mongo, has purposely put the planet on a collision course with Earth, and only Flash can stop him.
In the near future, big wars are avoided by giving individuals with violent tendencies a chance to kill in the Big Hunt. The Hunt is the most popular form of entertainment in the world and also attracts participants who are looking for fame and fortune. It includes ten rounds for each competitor, five as the hunter and five as the victim.
A nuclear explosion in the far north unleashes Gamera, the legendary flying turtle, from his sleep under the ice. In his search for energy, Gamera wreaks havoc over the entire world, and it's up to the scientists, assisted by a young boy with a strange sympathic link to the monster, to put a stop to Gamera's rampage.
When an atomic war on Mars destroys the planet's women, it's up to Martian Princess Marcuzan and her right-hand man Dr. Nadir to travel to earth and kidnap women for new breeding stock. Landing in Puerto Rico, they shoot down a NASA space capsule manned by an android. With his electronic brain damaged, the android terrorizes the island while the Martians raid beaches and pool parties
After landing on a mysterious planet, a team of astronauts begin to turn on each other, swayed by the uncertain influence of the planet and its strange inhabitants.
In 2020, after the colonization of the moon, the spaceships Vega, Sirius and Capella are launched from Lunar Station 7. They are to explore Venus under the command of Professor Hartman, but an asteroid collides and explodes Capella. The leader ship Vega stays orbiting and sends the astronauts Kern and Sherman with the robot John to the surface of Venus, but they have problems with communication with Dr. Marsha Evans in Vega. The Sirius lands in Venus and Commander Brendan Lockhart, Andre Ferneau and Hans Walter explore the planet and are attacked by prehistoric animals. They use a vehicle to seek Kern and Sherman while collecting samples from the planet. Meanwhile John helps the two cosmonauts to survive in the hostile land.