A smugglers gang is active on the Austrian-Swiss border. Until now, no one has come to their attention. But one day a little girl gets seriously ill and needs medical attention; the young operator will forget that he has to be careful and calls for help through the secret channel.
| Actor | Role |
|---|---|
 Oskar WernerStudent | Student |
 Fritz ImhoffUncle Otto | Uncle Otto |
 Ernst WaldbrunnMakkabi | Makkabi |
 Heinz MoogWartanian | Wartanian |
| HHermann ErhardtShooter | Shooter |
 Walter LadengastThe patched one | The patched one |
 Rudolf RhombergPiefke | Piefke |