Summary: 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. (TCM)

Genre: Drama

Country: USA

Directed By: Georg Fenady

Starring: Ray Milland, Susan Sullivan, Leslie Nielsen, James Olson, Lonny Chapman, Julie Sommars, Dennis Cole, Sheila Larken

More information at the Internet Movie Database