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 leads to the killer fleeing with Janice as a hostage and a chase by car and helicopter lead to a climax on a miner's bucket on cables a mile above the canyon floor.
Unfortunately the movie Edge of Eternity is not yet available on HBO Max.
| Writing | Knut Swenson | Screenplay |
| Writing | Knut Swenson | Story |
| Writing | Richard Collins | Screenplay |
| Writing | Ben Markson | Story |
| Directing | Don Siegel | Director |
| Production | Don Siegel | Associate Producer |
| Production | Kendrick Sweet | Producer |
| Art | Frank Tuttle | Set Decoration |
| Editing | Jerome Thoms | Editor |
| Sound | Daniele Amfitheatrof | Original Music Composer |
| Camera | Burnett Guffey | Director of Photography |
| Art | Robert Peterson | Art Direction |
| Lighting | Seldon White | Gaffer |
| Camera | Andrew J. McIntyre | Camera Operator |
| Sound | Harold Lee | Sound Recordist |
