USA
John Martin is part of an American spy team dropped into France during World War II to destroy the French railway system. After successfully blowing up a tunnel he runs back to save Ellen and is told "Never come back for me again." Later he must choose whether or not to obey her wishes. - IMDb
| Bajo el manto tenebroso |  Argentina |
| Bajo el manto tenebroso |  Spain |
| Bajo el manto tenebroso |  Mexico |
| Eroi nell'ombra |  Italy |
| Farlig Oppdrag |  Norway |
| Farligt uppdrag |  Sweden |
| Les héros dans l'ombre |  France |
| I hemmelig tjeneste |  Denmark |
| İsimsiz kahramanlar |  Turkey |
| O.S.S. |  Australia |
| O.S.S. |  Canada |
| O.S.S. | Spain |
| O.S.S. (short title) |  Finland |
| O.S.S. |  United Kingdom |
| O.S.S. |  Portugal |
| O.S.S. |  Romania |
| O.S.S. | USA |
| O.S.S. asiamies | Finland |
| OSS - Misja specjalna |  Poland |
| Sob o Manto Tenebroso |  Brazil |
| Αφανείς ήρωες |  Greece |
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Bobby Driscoll [9] | Gerard |
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Monica Folts [7] | Little Girl with Kitten |
