Pilgrim Corporation has leased Choke Canyon to research physicist David Lowell for 99 years. Lowell has built an impressive research laboratory there. When Pilgrim suddenly needs Choke Canyon for toxic waste storage, they resort to violence to force out the renitent Lowell. However, Pilgrim Corportation vastly underestimates Lowell, who is a tenacious, principled, and ingenious man.

Attalus, a war prisoner by Rome, proves his valor in the arena, becomes a gladiator trainer, conquers the women's hearts and the men's envy, and saves Rome from a political plot to a usurper to occupy the throne.

The town of San Felipe is plagued by robberies. Two Federal Agents are sent to investigate the major suspect, a local landowner. One agent works on his ranch, the other becomes his daughter's fiance.

Curious noises in the Arabian desert signal an attack by bizarre phantom-like raiders of gold who are in search of their Queen. A relocated Hercules arrives on the scene and sets off to find a kidnapped Nomad princess. He follows her abductors past the Mountain of the Dead, through the City of the Phantoms, to a mysterious castle which turn out to be Atlantis. As if all this wasn't strange enough, Hercules will encounter gold-painted, blue body stocking-wearing, reanimated dead guys; female guards (who are killed if they taste the love of a man); a dying evil queen and her Ming the Merciless wanna-be sorcerer-scientist; and a torturous climax.

A deadly manhunt takes three people through the sordid streets of the Philadelphia underworld, in search of killers and the truth, where every clue brings new questions.

In the future the struggle for space superiority has forced humanity to search the cosmos for a rare element called Antallum that is the key ingredient for the construction of neutron bombs. Starship captain Larry Madison and his crew are assigned to retrieve Antallum from the remote planet Lorigon. However, Madison and crew find themselves under the control of a powerful computer on Lorigon that incites everyone to have sex. Some versions feature brief adult scenes shot with body doubles.

The twins of the recently departed Marcus Aurelius fight it out to see who will become emperor of Rome.

In this sword and sandal fantasy, a gladiator named Poseidon must battle a quartet of combatants in ancient Rome. If he wins, the son of Hercules will have his life and anything else he wants. Sure enough, he wins and asks that the life of a Christian girl be spared. But the girl refuses her liberty until all of her fellow believers are also released.

An alien civilization, which facing eminent extinction, kidnaps two famous genetic scientists from Earth. A troop of soldiers is dispatched to combat the humanoid robots and rescue the victims.

A strange signal arrives on the Earth disturbing all communications, while an UFO appears above the Antarctic sea. Captain Alex Hamilton is sent with his spaceship and crew to the space outside the Solar System to find the origin of that signal. They reach an unknown planet where a giant robot enslaved a whole population of humanoids by taking their psychic energies.

Earth is attacked by an intergalactic villain and his army of robotic androids.

Three men with supernatural powers interfere in a tribal warfare to prevent evil Amazons destroying the inhabitants of a village.

The Fighting Eagle returns again, sans Thong, to the legendary realm of Dragor to do battle with Phaedra, an evil sorceress. Her main weapon is an unstoppable warrior, known as the Master of the Sword, who continuously battles Ator to a draw, until finally revealing his secret connection to the Blademaster.