The US military is running a test for a special type of radio transmitter, to be used to communicate with submarines, in a deep system of underground caves in Central America. When the signal from one of the transmitters suddenly disappears, a team of soldiers led by Major Elbert Stevens and cave specialists led by Rupert 'Wolf' Wolfsen including scientist Leslie Peterson are sent in to find out what happened. Exploring deep underground, they stumble upon a tribe of albino cave-dwellers who have apparently been isolated from the rest of the world for thousands of years. The cave-dwellers are hurt by radio frequencies and are able to see in infra-red frequencies, tracking the explorers by their body heat.

Reporter Goro Maki stumbles upon scientists conducting weather experiments on Sollgel Island in the ...

Towards the end of the Civil War, a group of Confederate soldiers hole up on an abandoned plantation...

A friendly troll with a magic green thumb grows one flower too many for the queen, whose laws requir...

Two teen girls, one from the city, one from the country, try to find the hidden gold of Bear Mountai...

Distraught, confused, and half-wild with fear, Sarah Carter emerges alone from the Appalachian cave ...

A platoon of U.S. soldiers in Afghanistan become trapped in a cave and are hunted down by a deadly c...

When a successful, but emotionally exhausted woman seeks to find herself on a solo hike, she must fa...

A Muslim ambassador exiled from his homeland joins a group of Vikings, initially offended by their b...

Danielle Noble (played by Carla Ortiz) and her team of expert cave divers led by an ambitious americ...

One Million B.C. is a 1940 American fantasy film produced by Hal Roach Studios and released by Unite...

A woman brings her family back to her childhood home, which used to be an orphanage, intent on reope...

A small rural town in Maine is shocked as a mysterious animal leaves a local resident brutally rippe...

An abandoned piece of farmland in rural Tennessee may hold the key to multiple missing person cases ...

Upon receiving reports of missing persons at Fort Spencer, a remote Army outpost on the Western fron...

A man, crippled in an accident, returns to the woods after rehabilitation, certain that he'll not se...

In a Asian desert, a team of explorers learn of a newly discovered cave system and set out to explor...

After a personal tragedy, Sarah joins her friends on a caving expedition in the Appalachian Mountain...

A man wakes up deep inside a cave. Suffering amnesia, he has no recollection of how he came to be he...

In a dark subterranean landscape, the Amphibian has lost its way.

During the US Civil War, Union POWs escape in a balloon and end up stranded on a South Pacific islan...