Imprisoned during the Spanish Civil War, John "Kit" McKittrick is released when a New York City policeman pulls some strings. Upon returning to America, McKittrick hears that a friend has committed suicide, and he begins to smell a rat. During his investigation, McKittrick questions three beautiful women, one of whom has a tie to his refugee past. Pursued by Nazi operatives, McKittrick learns of the death of another friend, and begins to suspect the dark Dr. Skaas.
Unfortunately the movie The Fallen Sparrow is not yet available on Disney Plus.
| Writing | Warren Duff | Screenplay |
| Writing | Dorothy B. Hughes | Novel |
| Editing | Robert Wise | Editor |
| Camera | Nicholas Musuraca | Director of Photography |
| Directing | Richard Wallace | Director |
| Production | Robert Fellows | Producer |
| Sound | Roy Webb | Original Music Composer |
| Crew | Vernon L. Walker | Special Effects |
| Sound | C. Bakaleinikoff | Music Director |
| Directing | Sam Ruman | Assistant Director |
| Costume & Make-Up | Edward Stevenson | Costume Designer |
| Art | Darrell Silvera | Set Decoration |
| Art | Mark-Lee Kirk | Art Direction |
| Art | Van Nest Polglase | Production Design |
| Sound | James G. Stewart | Sound Re-Recording Mixer |
| Sound | Bailey Fesler | Sound Recordist |
| Art | Harley Miller | Set Decoration |
| Art | Albert S. D'Agostino | Art Direction |
