An active volcano threatens a south Pacific island resort and its guests as a power struggle ensues between the property's developer and a drilling foreman.
Paul Newman
as Hank Anderson
Jacqueline Bisset
as Kay Kirby
William Holden
as Shelby Gilmore
James Franciscus
as Bob Spangler
Ernest Borgnine
as Det. Sgt. Tom Conti
Edward Albert
as Brian
Red Buttons
as Francis Fendly
Barbara Carrera
as Iolani
Valentina Cortese
as Rose Valdez
Veronica Hamel
as Nikki
Burgess Meredith
as Rene Valdez
John Considine
as Dr. John Webster
