What Waits Below (1984) is a Horror, Adventure, Science Fiction film that follows 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. What Waits Below is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 4.2 out of 10 from 20 votes. Fans of horror movies may also want to explore similar titles below.