A young European boy living in San Francisco is reluctant to marry his long-term girlfriend because he wants to travel around the world first. His wealthy uncle agrees to send him on a global expedition aboard his ship, but en route the boy and his travelling companion are shipwrecked on a remote island, populated by countless prehistoric creatures as well as gold-hunting bandits.

After a chance encounter with a mysterious couple claiming to be old friends, Andrés and Ana are invited to spend the evening at a beautiful, secluded old villa. As the night winds down, they begin to sense that there are some rather strange things going on around them and, after agreeing to sleep over, find themselves unwittingly pulled into a series of bizarre sexual encounters which they slowly discover are part of a horrifying Satanic ritual designed to make them slaves to the Prince of Darkness!

Kronos, hero of a distant galaxy, tangles with mad scientist Gulik over the fate of mankind.

A 19th-century expedition to the Earth's core reveals primordial wonders, prehistoric monsters and a subterranean civilization that may convey the greatest discovery of all.

A frustrated Boston detective searches for the maniac responsible for mutilating a number of university coeds.

After a meteor-like object lands in the woods, poachers unearth a cave filled with alien eggs. As they attempt to destroy the eggs, one of them is killed by an unseen creature, leaving one egg intact. A young boy named Tommy finds the remaining egg and brings it home to hatch. As more murders occur around town, Tommy learns that his new pet alien, who he names Trumpy, possesses telekinetic powers.

Paul, a mercenary in Africa, decides that he can no longer work for the Organization because of their brutal tactics. But the evil Organization refused to release him, and Paul finds that he must fight his way out.