Movies and TvShows featuring "underground-cavern" theme.

Mystery at Blind Frog Ranch is a thrilling documentary series that uncovers the secrets and peculiar happenings at Blind Frog Ranch in Utah. The show follows a team of treasure hunters as they investigate the unexplained phenomena, lost treasure, and underground caverns surrounding the ranch.

El Topo is an avant-garde film that follows the journey of a gunslinger known as El Topo. He seeks enlightenment and embarks on a surreal and violent quest through the desert. Along the way, he encounters themes of religion, mysticism, revenge, and racism. The film is filled with symbolism and explores dark and twisted aspects of human nature.

When a young boy witnesses a flying saucer land in a nearby sand pit, he becomes convinced that aliens have invaded his town and are taking over the minds of the people. As he tries to convince the disbelieving authorities and his own parents, he finds himself in a race against time to save his family and stop the aliens' plans for world domination.

Bleeders is a horror movie set on a remote island where a family of cannibals, born out of incest, lives in an underground cavern. The family has a deformity that makes them hunger for human flesh. When a group of people stumble upon the island, they become the target of the cannibal family's gruesome siege.

Witchery is a horror movie from 1988 that follows a group of friends who find themselves on a remote island while on vacation. As they explore the island, they uncover a dark history involving witchcraft, demonic possession, and human sacrifice. They soon become victims of supernatural forces, with their lives hanging in the balance.

In Killers from Space, an atomic scientist is abducted by aliens and forced to aid them in their quest to conquer Earth. With the help of the FBI, he must stop their sinister plans before it's too late.

A team of scientists travel to a remote island to study its unique ecosystem, but they soon discover that the island is inhabited by giant mutated crabs. As the scientists struggle to survive and find a way off the island, they uncover the horrifying truth behind the creatures' origins and must find a way to stop them before they take over the world.

The Secret World of Og is a children's adventure about 4 children who venture into an underground cavern beneath their playhouse to look for their lost baby brother. There, they discover a land of little green people who are enamored by the world above but won't allow anyone to leave their cavern for fear they might "tell".

When a girl's father falls ill with cancer, she is approached by a seductive witch who offers to cure him in exchange for a dark proposition. As she becomes entangled in a coven of witches, she must navigate the dangerous world of witchcraft and make a sacrifice that will change her life forever.

Unknown World is a low-budget sci-fi movie set in an underground world. A group of scientists drill deep into the Earth's core to explore and find a safe haven due to the impending nuclear weapons. During their exploration, they encounter various challenges such as caves, tunnels, underground lakes, and caverns. The movie follows their journey as they try to survive in this subterranean world.

A woman leads an expedition into a remote jungle to find her long-lost brother, but instead finds a mad scientist who has created a fungus monster that feeds on the local inhabitants.

While on a mission to locate three missing soldiers, a team of reconnaissance marines encounter a blood-spattered Iraqi stumbling through the desert. After following the distraught man into the depths of an insurgent cave, the marines make a horrifying discovery bringing them face-to-face with an ancient evil.

A group of friends decide to spend a weekend in a castle belonging to Riccardo, a moody and hyper-sensitive young artist. The only other inhabitants of the castle are a mysterious housekeeper, Caterina, and the demented Aldo. The group are joined by two friends: Serena and a young American medium, Anthony. During a seance Anthony predicts a tragedy, then leaves the castle, shocked by his own visions. An hour later, Serena is found strangled to death in bed. The others become gradually more and more diffident and suspicious, especially when another girl is murdered...

The Three Mesquiteers are forced to track down a train robbery ring after some of the gang hijack their truck for a getaway and the police conclude they are part of the gang, an identification which is just fine with the gang's nameless chief.