On the Danube Plain, several pupils, mobilized by the example of a pioneer, adopt an exemplary school and social conduct and impose it on the undisciplined.
| Actor | Role |
|---|---|
 Costache AntoniuSofronie | Sofronie |
 Septimiu SeverMarin Neagoe | Marin Neagoe |
 Tatiana IekelIrina Savu | Irina Savu |
 Toma CaragiuNot listed | Not listed |
| MMarieta SadovaTușa Zamfira | Tușa Zamfira |
| AAurel MunteanuIfrim | Ifrim |
| PPuica StănescuProfesoara Clejan | Profesoara Clejan |
 Nucu PăunescuNot listed | Not listed |
| HHaralambie PolizuNot listed | Not listed |
 Aurelia SorescuNot listed | Not listed |
| CConstantin ManeaNot listed | Not listed |