The civil war in Russia, guerrillas fighting with Kolchak formations. As a result of sabotage, accident with white Russian train takes place. In disaster area the flag with the inscription "Wagtail's Army" is found. Kolchak commanders think that they are Bolsheviks, but guerrilla leader does not know anything. It turns out that this is work of three boys.
| Actor | Role |
|---|---|
| VViktor KholmogorovTrofim «Tryasoguzka» | Trofim «Tryasoguzka» |
| YYuri KorzhovGavryukha Spitsin «Tsigan» | Gavryukha Spitsin «Tsigan» |
 Aivars GalvinshMika | Mika |
 Gunārs CilinskisPlatais | Platais |
 Ivan KuznetsovKondrat Vasilievich | Kondrat Vasilievich |
 Viktor PlyutNikolay | Nikolay |
 Pavel Shpringfeldtrack worker | track worker |
 Aleksei Alekseyevcolonel of Kolchak's army | colonel of Kolchak's army |
 Gurgen Tonuntscaptain | captain |
 Ivan LapikovNot listed | Not listed |
 Pavel PervushinNot listed | Not listed |
 Aleksandr MelnikovNot listed | Not listed |
 Uldis DumpisNot listed | Not listed |
| SSergei NikolaevNot listed | Not listed |