Before the outbreak of WWII, Nazi sympathizers plot to undermine America.
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| Writing | George H. Plympton | Screenplay |
| Directing | Ray Taylor | Director |
| Writing | Jack Natteford | Story |
| Writing | Joseph O'Donnell | Screenplay |
| Crew | David Sharpe | Stunts |
| Editing | Ace Herman | Editor |
| Editing | Irving Birnbaum | Editor |
| Crew | Ken Terrell | Stunts |
| Crew | Dale Van Sickel | Stunts |
| Crew | Carl Mathews | Stunts |
| Editing | Jack Dolan | Editor |
| Directing | Lewis D. Collins | Director |
| Editing | Edgar Zane | Editor |
| Crew | Chuck Hamilton | Stunts |
| Writing | Ande Lamb | Screenplay |
| Editing | Alvin Todd | Editor |
| Crew | Tom Steele | Stunts |
| Writing | Dwight V. Babcock | Story |
| Production | Morgan Cox | Producer |
| Camera | Maury Gertsman | Director of Photography |
| Camera | William A. Sickner | Director of Photography |
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