Two bumblers, failures as businessmen and air raid wardens, stumble across a nest of Nazi saboteurs bent on blowing up the local magnesium plant.
| Actor | Role |
|---|---|
 Stan LaurelStan | Stan |
 Oliver HardyOllie | Ollie |
 Edgar KennedyJoe Bledsoe | Joe Bledsoe |
 Jacqueline WhitePeggy Parker | Peggy Parker |
 Stephen McNallyDan Madison | Dan Madison |
 Nella WalkerMillicent Norton | Millicent Norton |
 Donald MeekEustace Middling | Eustace Middling |
 Henry O'NeillRittenhause | Rittenhause |
 Howard FreemanJ.P. Norton | J.P. Norton |
 Paul StantonCaptain Biddle | Captain Biddle |
 Robert Emmett O'ConnorCharlie Beaugart | Charlie Beaugart |
 William TannenJoseph | Joseph |
 Russell HicksMajor Scanlon | Major Scanlon |
 Philip Van ZandtHerman | Herman |
 Frederick WorlockOtto | Otto |
 Don CostelloHeydrich | Heydrich |
| DDick GordonTownsman at Meeting (uncredited) | Townsman at Meeting (uncredited) |
| HHal TaggartTownsman at Meeting (uncredited) | Townsman at Meeting (uncredited) |
 Bobby BurnsTownsman in Gymnasium (uncredited) | Townsman in Gymnasium (uncredited) |