Prior to the United States' involvement in World War II, the masked vigilante Spy Smasher fights Nazi agents operating within the US, led by the treacherous sabotage leader codenamed The Mask.
| Directing | William Witney | Director |
| Writing | Joseph F. Poland | Screenplay |
| Costume & Make-Up | Bob Mark | Makeup Artist |
| Crew | Cy Slocum | Stunts |
| Crew | Tom Steele | Stunts |
| Crew | David Sharpe | Stunts |
| Crew | Daniel J. Bloomberg | Sound Recordist |
| Crew | Charles L. Lootens | Sound Recordist |
| Crew | Howard Lydecker | Special Effects |
| Crew | Duke Green | Stunts |
| Crew | Charles Regan | Stunts |
| Writing | Joseph O'Donnell | Screenplay |
| Editing | Edward Todd | Editor |
| Crew | Duke Taylor | Stunts |
| Crew | Bill Wilkens | Stunts |
| Crew | Bud Wolfe | Stunts |
| Writing | William Lively | Screenplay |
| Crew | Buddy Roosevelt | Stunts |
| Crew | Sid Troy | Stunts |
| Production | William J. O'Sullivan | Producer |
| Editing | Tony Martinelli | Editor |
| Crew | John Daheim | Stunts |
| Crew | Tommy Coats | Stunts |
| Crew | Carey Loftin | Stunts |
| Writing | Norman S. Hall | Screenplay |
| Crew | James Fawcett | Stunts |
| Crew | Jerry Jerome | Stunts |
| Crew | Yakima Canutt | Stunts |
| Crew | Loren Riebe | Stunts |
| Writing | Ronald Davidson | Screenplay |
| Crew | Theodore Lydecker | Special Effects |
| Crew | Bert LeBaron | Stunts |
| Camera | Reggie Lanning | Director of Photography |
| Crew | Ken Terrell | Stunts |
| Sound | Mort Glickman | Original Music Composer |
