City Beneath the Sea (1971) is a Science Fiction, Action film that follows a group of 21st-century colonists inhabit an underwater city called Pacifica. Originally intended as a purely scientific installation, the U. S. government wants to stash all its gold reserves from Fort Knox there, along with a fantastic new radioactive element. The brother of Pacifica's returning former commander plans to steal the gold and on top of that, the city faces destruction by an asteroid from outer space! City Beneath the Sea is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 4.5 out of 10 from 17 votes. Fans of science fiction movies may also want to explore similar titles below.