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 | Richard Collins | Screenplay |
| Writing | Knut Swenson | Story |
| Directing | Don Siegel | Director |
| Writing | Knut Swenson | Screenplay |
| Writing | Ben Markson | Story |
| Sound | Daniele Amfitheatrof | Original Music Composer |
| Editing | Jerome Thoms | Editor |
| Production | Don Siegel | Associate Producer |
| Art | Robert Peterson | Art Direction |
| Art | Frank Tuttle | Set Decoration |
| Camera | Burnett Guffey | Director of Photography |
| Production | Kendrick Sweet | Producer |
| Lighting | Seldon White | Gaffer |
| Camera | Andrew J. McIntyre | Camera Operator |
| Sound | Harold Lee | Sound Recordist |
