When the cable breaks on their diving bell four people find themselves trapped in a hidden underwater world.
Genre : AdventureScience FictionThriller
Runtime : 70 mins
Release Date : 1959-11-18



(Prof. Millard Wyman)

(Craig Randall)

(Dale Marshall)
(Paul Whitmore)

(Lauri Talbott)

(Dr. J.R. Matheny)
(Old Man in the Caverns)
(Jim Wyman)
(Wilson, Sonar Man)
(The Captain)
(Hank)
(Reporter)
(Jimmy, Reporter)
(Narrator)