A party of tourists -- including a state senator, a park ranger who was her one-time lover, a cantankerous professor, and an escaped convict -- are trapped deep inside the caverns of an unnamed national park, rescued briefly, and then caught in a second cave-in.
Director
Georg Fenady
Dennis Cole
Ranger Gene Pearson
Susan Sullivan
Senator Kate Lassiter
Leslie Nielsen
Joe Johnson
Ray Milland
Prof. Harrison Soames
Julie Sommars
Liz Johnson
Sheila Larken
Ann Soames
Lonny Chapman
Walt Charles
James Olson
Tom Arlen
Ivan Bonar
Doctor at Prison
David Westberg
Larry Munson
Todd Martin
Herb
William Bryant
Jack Miller
US
