Energetic Dr. Alice Váňová becomes the pit doctor at Mír Mine and spearheads a silicosis prevention study requiring miners to drink milk regularly. The miners, led by a tight-knit group, stubbornly refuse public participation. Determined union chair Janeček resorts to psychological tactics and pressure campaigns to force their compliance, turning a health initiative into a tense battle of wills.
| Actor | Role |
|---|---|
 Václav BabkaRudla Janecek | Rudla Janecek |
 Vladimír MenšíkOta Chochola | Ota Chochola |
 Jan SkopečekMasín | Masín |
 Josef KemrHnízdo | Hnízdo |
 Josef DvořákKubík | Kubík |
 Ivan VyskočilJusta | Justa |
 Petr NárožnýKynkal | Kynkal |
 Jiří KrampolFranta | Franta |
 Regina RázlováDr. Alice Vánová | Dr. Alice Vánová |
 Karel GottKarel Gott | Karel Gott |
 Jaroslav MoučkaKodet | Kodet |
 Jaroslav SatoranskýDr. Kalas | Dr. Kalas |
| AAdolf FilipSrdínko | Srdínko |
 Ladislav TrojanMirek | Mirek |
 Míla MyslíkováHnízdová | Hnízdová |
 Karolina SlunéčkováNot listed | Not listed |
 Jana PlichtováNot listed | Not listed |
 Dagmar Havlová VeškrnováNot listed | Not listed |
 Simona StašováNot listed | Not listed |
 Miriam KantorkováNot listed | Not listed |
| MMarkéta SvětlíkováNot listed | Not listed |
| MMilan ŠulcNot listed | Not listed |
| KKarel EngelNot listed | Not listed |
 Jana BřežkováNot listed | Not listed |
 Jitka ZelenohorskáNot listed | Not listed |
| VViktor MaurerNot listed | Not listed |
 Milan NedělaNot listed | Not listed |
 Karel AugustaNot listed | Not listed |
 Jiří LírNot listed | Not listed |
 Stanislav FišerNot listed | Not listed |