A radio station engineer named Allan Maxwell establishes contact with an alien being. But when the station's power is turned up, the alien is teleported to Earth, where is radioactive nature causes havoc.

""An oriental power"" develops a radical medical advance that temporarily makes skin malleable. They then manage to replace a Presidential candidate with one of their own.

A group of intellectuals decides that the best way to avoid World War III is to give us all a common enemy. To that end, they transform a man into an alien creature.

A radical experiment gives a college professor incredible power, which his subconcious mind uses to destroy his enemies.

A scientist discovers a way to speed up evolution and tries out the process on a simple miner.

An astronaut travels to the 23rd Century, where he finds the Earth a blasted wasteland inhabited by monsters.

A new invention allows one to spy on anyone, anywhere.

At a military base far in the arctic, a man invents a machine which allows two minds to contact one another. An earthquake causes a malfunction and two men wake up to find that their minds have switched bodies.

A man with a steel plate in his head overhears conversations about global conquest. But all he sees are a bunch of rocks.

In a war action with the planet Ebon, some soldiers are captured, interrogated and tortured.

A young man and his big brother drive across country to the latter's new job site. At the end of his first week of work, he returns strangely changed. A bathroom accident kills the older brother by shorting out his pacemaker. The fact that big brother had a perfectly healthy heart leads the younger brother and a police detective, Sgt. Sirolio, to dig further. Sirolio finds that Norco hides a secret. They've been experimenting with a dangerous being of pure energy. This was how the older brother was killed prior to being resurrected with the pacemaker implant. Sirolio and a scientist are nearly killed with the creature escapes. Some quick thinking allows them to draw the thing back into ""the pit"". Safe, for now.

A scientist named Ian Fraser invents a machine which can pierce the borderland between this world and... The Afterlife? Maybe. Fraser convinces an industrialist to finance future experiments with the possibility of contacting the rich man's dead son.

In a South American country a group of explorers discover a prehistoric monster in an ancient lake. The discovery leads them into conflict with the country's dictator.

The arrival of some VIPs from the planet Zanti is complicated by the intrusion of outsiders. After a fierce fight with the creatures we find that they were actually criminals who had been sentenced to death. The Zantis are too civilized to execute them on their own, so they left it to us barbarous Earthlings.

A convict serving a life sentence finds that he has an alternative: change places with an alien.

Two Martian investigators probe our custom of homicide.

Eloping lovers come on a strange house. There they find an old woman still despairing over the loss of her fiance on their wedding day many years ago. Little does she know that one of her wedding presents is responsible for the disappearance of the groom: the present with the card that reads ""Don't Open Till Doomsday"".

A queen bee assumes a human appearance in order to make an unwary scientist into her new mate.

A government agent infiltrates a secret organization known as ""The Invisibles"" who attach parasites to the spinal chords of their victims. And, in doing so, they hope do (dare I say it?) take over the world!

A scientist captures an alien that can protect itself with an unbreakable shield.

Four scientists disappear in one day. All were born in the same county, on the same day. A fifth scientist is in jail and a federal agent is assigned to the case. The fifth man is sprung from jail by a mysterious stranger who says he's the young mans father.

Scientists on a space station discover and unusual and dangerous plant.

A group of people board an amusement park ride. Then they (and their surprised ""captain"") find that they're really going on a space jaunt.

Workers on a moon base find a mysterious rock that appears to be alive.

A radioactive rainstorm at a scientific base on a distant planet mutates a scientist driving him insane and making him telepathic.

After running over an ancient man, Wade Norton finds a strange house where some people are kept prisoner (and ageless) by an alien intelligence.

Two Earth people are transported to an alien planet, along with two aliens. The are told by their abductors that they will fight each other to the death. The stakes are high: the homeworld of the losers will be destroyed slowly, for the further amusement of their captors.

Parents of a gifted youngster discover that their sons' new tutor is not quite human.

Inhabitants of a suburb find one morning that their 6 block neighborhood has been snatched off to an alien planet. The aliens have been rendered immobile by an infection and they need slaves. They feel that the Earth people would rather become slaves than becoming infected and thus immobile. The humans surprise them by sacrificing themselves in order to save the rest of humanity from slavery.

An accident in a nuclear research facility opens a dimensonal doorway. The invading creatures attempt to create an explosion which will widen the doorway but a scientist discovers a way to reverse the damage and close the doorway.

Soldiers investigating the crash of a UFO are massacred. An assassin, Louis Mace, is transformed into an alien so that he can infiltrate and kill the aliens. He finds out that the aliens are peaceful and only acted in self-defense when they killed the aliens. He then helps the remaining crewman repair his ship and leaves with him.

A crazy man invents a machine that can tilt time and bring the dead back to life.