When Dinosaurs Ruled the Earth (1970)

After an earthquake destroys their underwater station, six researchers must navigate two miles along the dangerous, unknown depths of the ocean floor to make it to safety in a race against time.

During the Vietnam War, a recon unit ventures to an isolated jungle valley to uncover the fate of a missing platoon. They soon find themselves in a fight for their lives against an unexpected enemy — prehistoric dinosaurs.

A rogue prince reluctantly joins forces with a mysterious princess and together, they race against dark forces to safeguard an ancient dagger capable of releasing the Sands of Time – gift from the gods that can reverse time and allow its possessor to rule the world.

Dr. Adrian Helmsley, part of a worldwide geophysical team investigating the effect on the earth of radiation from unprecedented solar storms, learns that the earth's core is heating up. He warns U.S. President Thomas Wilson that the crust of the earth is becoming unstable and that without proper preparations for saving a fraction of the world's population, the entire race is doomed. Meanwhile, writer Jackson Curtis stumbles on the same information. While the world's leaders race to build "arks" to escape the impending cataclysm, Curtis struggles to find a way to save his family. Meanwhile, volcanic eruptions and earthquakes of unprecedented strength wreak havoc around the world.

Hoping to alter the events of the past, a 19th-century inventor instead travels 800,000 years into the future, where he finds mankind divided into two warring races.

A shipping disaster in the 19th Century has stranded a man and woman in the wilds of Africa. The lady is pregnant, and gives birth to a son in their tree house. Soon after, a family of apes stumble across the house and in the ensuing panic, both parents are killed. A female ape takes the tiny boy as a replacement for her own dead infant, and raises him as her son. Twenty years later, Captain Phillippe D'Arnot discovers the man who thinks he is an ape. Evidence in the tree house leads him to believe that he is the direct descendant of the Earl of Greystoke, and thus takes it upon himself to return the man to civilization.

A helicopter pilot and an environmental scientist lead a exodus of survivors in a search for a safe haven after a catastrophic tectonic event causes the crust of the earth to break apart.

A deep sea submersible pilot revisits his past fears in the Mariana Trench, and accidentally unleashes the seventy foot ancestor of the Great White Shark believed to be extinct.

An ape crash-lands on Earth, which creates a sludge that makes him and a passing lizard grow to giant-size, resulting in a fight for dominance.

Tom and Mae Garvey are a Tennessee farming couple battling violent floods to save their land. In addition to natural disasters, the Garveys fight to stop a selfish land developer and a local corporation from foreclosing on their farm. While Mae stays at home to care for their children and tend to the crops, Tom finds work as a scab at a steel mill to preserve his family's property.