Doug McClure movies

Humanoid sea creatures start killing a fishing town's residents, and raping their women. It's up to the townsfolk and a visiting biologist to fight back and fend them off.

A Virginia farmer who has vowed to remain neutral during the Civil War is spurred into action when his youngest son is taken by Union soldiers.

During World War I, a German U-boat sinks a British ship and takes the survivors on board. After it takes a wrong turn, the submarine takes them to the unknown land of Caprona, where they find dinosaurs and neanderthals.

A Victorian era scientist and his assistant take a test run in their Iron Mole drilling machine and end up in a strange underground labyrinth ruled by a species of giant telepathic bird and full of prehistoric monsters and cavemen.