Three young boys living in the little coastal town are helping border guards to catch a network of smugglers.
| Actor | Role |
|---|---|
 Aleksandr LebedevNot listed | Not listed |
 Boris SichkinNot listed | Not listed |
 Arkadi TolbuzinNot listed | Not listed |
 Gennadi YudinNot listed | Not listed |
 Yuriy SarantsevNot listed | Not listed |