Hello Down There

When an underwater ocean lab is lost in a earthquake, an advanced submarine is sent down to find it and encounters terrible danger.

The two-person crew of a submersible descending into an ocean moon of Saturn become stranded and are at the mercy of strange lifeforms.

A crook decides to bump off members of his inept crew and blame their deaths on a legendary sea creature. What he doesn't know is that the creature...

A group of 21st-century colonists inhabit an underwater city called Pacifica. Originally intended as a purely scientific installation, the U. S....

A massive underwater volcano erupts and puts a group of investigative scientists in danger. They are rescued by an atomic super submarine named The...

An oceanic observation station is in desperate trouble after a sudden shark attack wrecked the oxygen supply. The accompanying ship, a coast guard...

Ships disappear on route across the Arctic Sea, and a special submarine is sent to investigate.

A chance discovery leads American mining engineer Ben Harris and acquaintance Harold to discover a lost city under the sea while searching for their...

After breaking up with her fiancé, a gym teacher returns to work at a women's college, but a legal loophole allows him to enroll as one of her...

A young linguist named Milo Thatch joins an intrepid group of explorers to find the mysterious lost continent of Atlantis.

An experimental submarine with a very experienced crew, the "Siren II" is sent to find out what happened to the "Siren I" after it mysteriously...

In a tributary of the Amazon, a monster – half-man, half-fish – is captured and placed in a reservoir in a Florida national park to be...