Desperate to land a man on the moon before Russia does, NASA hastily preps a would-be spaceman for a mission that would leave him alone in a lunar shelter for a year.
Unfortunately the movie Countdown is not yet available on Disney Plus.
| Directing | Robert Altman | Director |
| Writing | Loring Mandel | Screenplay |
| Writing | Hank Searls | Novel |
| Production | Jimmy Lydon | Producer |
| Production | William Conrad | Executive Producer |
| Art | Ralph S. Hurst | Set Decoration |
| Costume & Make-Up | Gordon Bau | Makeup Supervisor |
| Costume & Make-Up | Jean Burt Reilly | Hairstylist |
| Production | Russell Llewellyn | Unit Manager |
| Directing | Victor Vallejo | Assistant Director |
| Art | Frank L. Brown | Set Dresser |
| Sound | Everett A. Hughes | Sound |
| Crew | Eddie Hice | Stunt Double |
| Sound | Dan Wallin | Scoring Mixer |
| Directing | Stacy Harris | Script Supervisor |
| Camera | William W. Spencer | Director of Photography |
| Editing | Gene Milford | Editor |
| Sound | Leonard Rosenman | Original Music Composer |
| Art | Jack Poplin | Art Direction |
| Crew | Bob Fender | Unit Publicist |