Brendan O'Malley arrives at the Mexican home of old flame Belle Breckenridge to find her married to a drunkard getting ready for a cattle drive to Texas. Hot on O'Malley's heels is lawman Dana Stribling who has a personal reason for getting him back into his jurisdiction. Both men join Breckenridge and his wife on the drive. As they near Texas tensions mount, not least because Stribling is starting to court Belle, and O'Malley is increasingly drawn by her daughter Missy.
You can now watch The Last Sunset online on the following streaming providers in the United States.
| Directing | Robert Aldrich | Director |
| Writing | Dalton Trumbo | Screenplay |
| Writing | Howard Rigsby | Novel |
| Art | Alexander Golitzen | Art Direction |
| Production | Edward Lewis | Producer |
| Editing | Michael Luciano | Editor |
| Art | Oliver Emert | Set Decoration |
| Art | Alfred Sweeney | Art Direction |
| Production | Eugene Frenke | Producer |
| Camera | Ernest Laszlo | Director of Photography |
| Costume & Make-Up | Bud Westmore | Makeup Artist |
| Editing | Edward Mann | Supervising Editor |
| Sound | Waldon O. Watson | Sound |
| Sound | Donald Cunliffe | Sound |
| Costume & Make-Up | Norma Koch | Costume Design |
| Costume & Make-Up | Larry Germain | Hairstylist |
| Directing | Tom Connors Jr. | Assistant Director |
| Sound | Ernest Gold | Music |
| Sound | Joseph Gershenson | Conductor |
