Ferocious humanoid creatures from the future come back to the present to devour humans.

A Yellowstone National Park scientist and a thrill-seeking ranger join forces to plug-up a volatile super volcano that threatens to wipe out the entire United States.

A group of European explorers returning from China battle a pair of dragons sent by an evil wizard intent on keeping his land a secret.

Disaster strikes as a specialised team of investigators struggle to find out the truth about a strange monolith which sends out an intercontinental signal.