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.

Cast:Dennis Cole, Susan Sullivan, Leslie Nielsen, Ray Milland, Julie Sommars, Sheila Larken,

Genre:Action, Adventure, Drama, Thriller, TV Movie,

country:United States of America,

Production:Irwin Allen Productions, Warner Bros. Television,