Edge of Eternity (1959) Cornel Wilde, Victoria Shaw, Mickey Shaughnessy, Edgar Buchanan, Jack Elam, Tom Fadden

Helped by socialite Janice Kendon and barkeeper Scott O Brien, Arizona Deputy Sheriff Les Martin works to solve three brutal murders in and around the Grand Canyon. His efforts lead to the killer fleeing with Janice as a hostage, and a chase by car and helicopter leading to a climax on a miner s bucket on cables a mile above the canyon floor.