At sixteen, Maria becomes an underground revolutionary. In the terrible year of 1919, while conducting propaganda among the sailors of the interventionist fleet, the heroine meets the Spanish sailor Pablo. After parting, they meet again only a few years later. Pablo and Maria leave for Spain for illegal work. After burying her husband and son, she trains personnel for Soviet intelligence during the Second World War.
| Actor | Role |
|---|---|
 Ada RohovtsevaMariya Tkacheva | Mariya Tkacheva |
 Ángel GutiérrezPablo Luis Alvarez | Pablo Luis Alvarez |
 Vitali SolominSeva Chudreyev | Seva Chudreyev |
 Vladimir TatosovIgnacio Muriez | Ignacio Muriez |
 Valentina Vladimirovamaty Marii | maty Marii |
 Tatyana BedovaOlya | Olya |
| LL. BayonNot listed | Not listed |
 Oleg BelovRiccardo Rivas | Riccardo Rivas |
| DD. BotingNot listed | Not listed |
 Herardo KontrerasNot listed | Not listed |
| FF. EspejoNot listed | Not listed |
| CC. GomesNot listed | Not listed |
 Aleksandr GraveOleksa Grigoryevich | Oleksa Grigoryevich |
 Pavel KashlakovAnokhin | Anokhin |
| OOleg KhromenkovKiryanov | Kiryanov |
| NNikolay Fedortsovrussian instructor in Spain | russian instructor in Spain |
| AAvgust BaltrusaitisMakhno army soldier | Makhno army soldier |
| AAleksandr BarinovPavlik Paulito | Pavlik Paulito |
 Stanislav FesyunovNot listed | Not listed |