The Kid (Duncan Renaldo) masquerades as a government inspector in this pleasant, and pleasantly tuneful, Cisco Kid series entry. Learning that his old friends have been killed and Manuel Gonzales (Tito Renaldo) wrongly accused of cattle rustling by corrupt district officer Miguel Sanchez (George J. Lewis), the Kid assumes the identity of the murdered government official.
Unfortunately the movie South of the Rio Grande is not yet available on HBO Max.
| Production | Philip N. Krasne | Producer |
| Camera | William A. Sickner | Director of Photography |
| Editing | William Austin | Editor |
| Art | Dave Milton | Art Direction |
| Sound | Glen Glenn | Sound |
| Directing | Lambert Hillyer | Director |
| Writing | Ralph Gilbert Bettison | Writer |
| Writing | Victor Hammond | Writer |
| Writing | O. Henry | Characters |
| Writing | Johnston McCulley | Story |
