During World War II, dogs were trained in special centres for guard duty in concentration camps. However, one of the prisoners domesticates a female German Shepherd, which saves his life during his escape.
| Actor | Role |
|---|---|
| AAdolf FilipJan Mareš | Jan Mareš |
 Karel HlušičkaNot listed | Not listed |
 Vladimír DlouhýNot listed | Not listed |
 Miloš VavruškaNot listed | Not listed |
 Ilja PrachařNot listed | Not listed |
| FFrantišek SuchomelNot listed | Not listed |
| EEva JirouškováNot listed | Not listed |
 Gustav HeverleNot listed | Not listed |
 František HanusNot listed | Not listed |
| JJindřich BonaventuraNot listed | Not listed |
| ZZdeněk ProcházkaNot listed | Not listed |
| LLuďa MarešováNot listed | Not listed |
 Jan KanyzaNot listed | Not listed |
| BBohuslav LičmanNot listed | Not listed |
| SStanislav JarešNot listed | Not listed |
| KKarel DellapinaNot listed | Not listed |
| LLudvík PozníkNot listed | Not listed |
| KKarel ChromíkNot listed | Not listed |
| VVít PešinaNot listed | Not listed |
| PPavel JirasNot listed | Not listed |
| KKarel TexelNot listed | Not listed |
| JJitka HoráčkováNot listed | Not listed |
 Bohumil ŠmídaNot listed | Not listed |
 Jan SchánilecNot listed | Not listed |
 Jiří HolýJan Mareš (voice) | Jan Mareš (voice) |