Overview
Synopsis
Four adventurers descend to the bottom of the sea. When their surface tether snaps, they find themselves marooned in a network of underwater caverns.
Genres
AdventureScience FictionThriller
Cast
Cast

John Carradine
Prof. Millard Wyman

Robert Clarke
Craig Randall

Phyllis Coates
Dale Marshall
Allen Windsor
Paul Whitmore

Sheila Noonan
Lauri Talbott

George Skaff
Dr. J.R. Matheny
Maurice Bernard
Old Man in the Caverns
Joe Maierhouser
Jim Wyman




















