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.
Resolution (2012)
A man imprisons his estranged junkie friend in an isolated cabin in the boonies of San Diego to force him through a week of sobriety, but the events of that week are being mysteriously manipulated.
The Severed Arm (1973)
Trapped in a cave, five men cut the arm off of another companion in order to ward off starvation. After they are saved, their victim seeks revenge on them one by one.
Sound of Horror (1967)
When a group of isolated people in the Greek mountains set off a cave explosion, they are menaced by an invisible shrieking dinosaur that had been buried for eons
After Her (2018)
After finding a mysterious totem in a cave while on a hike with her friend, a wayward teenage girl goes missing.
Don't Come Back Alive (2022)
Camila is a young member of an elite police unit. During an operation in a dangerous area, she turns up in the middle of a ritual, in which their members burnt themselves to death. She suffers severe burns all over her body and goes into a coma. In her long recovery, her friend Fatima, a criminal prosecutor, and her partner and ex-boyfriend Ángel will help her. But Camila acts strange, she is distant, emotionless. The albino, a female figure who is attached to her soul since the ritual episode, is here to play a game with the three of them.
Invaders of the Lost Gold (1982)
Japanese soldiers battle a tribe of cannibals while protecting a gold shipment.
Deuce and a Quarter (2012)
On a road trip through the American South, two close friends experience a major radio malfunction, followed by curious encounters at an Alabama auto repair shop.
The Strangeness (1985)
A group of young miners venture into the Gold Spike Mine in search of gold, even after being warned by old-time prospectors to stay away. The miners proceed into the caverns anyway and soon realize that there’s no gold in these mines, but also that they’re not alone.
Howard’s Mill (2021)
An abandoned piece of farmland in rural Tennessee may hold the key to multiple missing person cases spanning over forty years.
Girl at the Window (2022)
A troubled teenage girl who’s struggling to cope with the accidental death of her father suspects that the mysterious killer stalking her hometown is not only her neighbour but her mother’s new romantic interest.
Terror from Beneath the Earth (2009)
After years of underground atomic testing, one of the animals living within the Wisawa caves (a system that stretches from Phantom Lake to the Deadlands) has undergone a radical and unimaginably horrible transformation! While exploring the caves, Dr. Vincent Edwards and colleague Rosemary Bennett stumble across evidence in the disappearance of local children. After reporting the find to the local sheriff, Dr. Edwards and Rosemary are tapped to lead a rescue attempt. Along with the sheriff and small-town farmer Stan Johnson (the children's father), the rescue party quickly comes to the realization that if the caves don't get them, whatever unseen terror lurking in the shadows just might!
The Secret of the Ice Cave (1989)
A group of treasure-seekers embark on a expedition into high adventure as they race to discover what's really located in the mysterious ice cave.
The Ivory Ape (1980)
An ivory ape escapes from a freighter and makes its way to Bermuda. Two anthropologists want to save it, but the local authorities hire a big-game hunter to track it down and kill it.
Cryptid (2022)
A small rural town in Maine is shocked as a mysterious animal leaves a local resident brutally ripped apart. Deemed to be a random bear attack by town officials, freelance journalist Max Frome suspects it might be something more.
The Empty Man (2020)
Retired cop James Lasombra is asked by a friend to investigate the disappearance of her daughter, who seemingly packed in the night and left an ominous message on the bathroom mirror - "The Empty Man Made Me Do It." As he investigates this mysterious figure further, James begins to see and hear strange things, and is forced to come to terms with his past and what it means for his future.
Kidnapped to Mystery Island (1964)
Three year old Ada, daughter of the British captain McPherson, is captured by the Indian Tukh sect to represent the incarnation of Kali. Ever hidden in a vast underground system of caverns, she watches over human sacrifices, doubting her vocation. 15 years have passed when her father finally finds her and attempts a rescue, together with a snake-hunter who has fallen in love with her.
The Pit (2006)
Our days. Five students of the Faculty of History sent to the archaeological practice. Professor, head of the young seekers of Antiquities, tells them the legend that during the war the museum staff had hidden above a statue of the pagan god Perun somewhere in the dungeons outside the city.