During WWII, Germans obtain the immortal heart of Frankenstein's monster and transport it to Japan to prevent it being seized by the Allies. Kept in a Hiroshima laboratory, it is seeming lost when the United States destroys the city with the atomic bomb. Years later a wild boy is discovered wandering the streets of the city alone, born of the immortal heart.

Dracula kills another innocent victim and Dr. Seward decides it's time to wipe him off the face of the earth. Armed with a hammer and a wooden stake, he arrives at Castle Dracula and duly dispatches the vampire Count. Next day, however, Dr. Frankenstein arrives with his assistant, Morpho, and a large crate containing the monster. Using the blood of a pub singer who has been abducted by his creation, the doctor brings Dracula back to life and uses him for his own ends. The Count and a female vampire continue to terrorise the town, so Dr Seward once again sets out for Castle Dracula. Unfortunately, he is attacked by the Frankenstein monster and left for dead. Amira, a gypsy, rescues him and summons up a werewolf to do battle with the forces of evil...

Glenn Manning, "The Amazing Colossal Man," believed dead after falling from the Hoover Dam, reemerges in rural Mexico, brain damaged, disfigured, and very angry.

Carl J. Sukenick is the commander of a branch of the CIA, battling terrorists with martial arts, while his dad keeps watch in the security center. Neal was sent out, but is a traitor, and he was mutated by a radiation blast. He sends Sara Shell to meet her husband, Agent Mark Shell, and daughter Sheila, but the three are brutally maimed and murdered by enemy agents. One cuts off Sara's hand for no apparent reason. A radiation blast from Neal the Traitor, who is wandering around an aqueduct killing passersby, mutates Joe as well. Carl says they knew nothing of the "hideous extra-dimensional being" breaking into this dimension, but he sends Evon, Rhonda, and Hackney to fight the mutations and the agent, who giggles constantly, before learning that there is another traitor and an alien, so he decides he must kill all his friends and find and kill the "hideous extra-dimensional being."

After a nuclear attack, an unlikely group of survivors, including a geologist, a crook and his moll, and a prospector, find temporary shelter in the remote-valley home of a survivalist and his beautiful daughter, but soon have to deal with the spread of radioactivity - and its effects on animal life, including humans.

An American airbase in Canada provokes resentment from the nearby residents after fallout from nuclear experiments at the base are blamed for a recent spate of disappearances. A captain from the airbase is assigned to investigate, and begins to suspect that an elderly British scientist who lives near the base and conducts research in the field of mind over matter knows more than he is letting on..

A dangerous combination of radiation and insecticide causes the unfortunate Scott Carey to shrink, slowly but surely, until he is only a few inches tall. His home becomes a wilderness where he must survive everything from spiders living in the cellar to his beloved cat.

After exposure to radiation, an atomic research scientist finds himself changing into a murderous, lizard-like creature every time he is exposed to sunlight.

Following a nuclear attack by terrorists on London, a mixed bag of survivors are trapped in a Government bunker cut off from the outside world. As they come to terms with their predicament they find that their security and safety are not as assured as they originally hoped…

Honeymooning in Bavaria, a young couple becomes stranded and is forced to stay the night in the area. Doctor Ravna, owner of the impressive chateau that sits imposingly above the village, invites them to dinner that evening. Their association with Ravna and his charming, beautiful family is to prove disastrous.

As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.

In 1950s rural Idaho, a young boy watches helplessly as his friends and brother fall under the spell of a mysterious widow living up the road and becomes convinced that she is a vampire.