A group of people try to explore the deep ocean in a diving bell, but get cut off from their surface contact. After the mishap with the bell, they don scuba gear and swim into a network of caves that are supplied with air by a volcano.
The lackluster plot and "B" acting made this generally uninteresting. It looked and sounded older than '58 to me, so we've got poor production value as well. I know what crappy movies are and don't feel the need to get verbose about it. I rate this bad for being poorly made and boring. Don't watch it.
