In summer 1975 at the Constanța Shipyard, director Mihai Coman pushes to cast a massive ship propeller in-house, facing technical failures, internal resistance, and political hesitation. As the casting repeatedly breaks and deadlines loom, he must overcome engineering hurdles and personal sacrifices to see the vessel launched with the home-forged propeller.
| Actor | Role |
|---|---|
 Mircea AlbulescuParaschiv | Paraschiv |
| ZZephi AlșecIonescu | Ionescu |
 Marga BarbuClara | Clara |
 Jean ConstantinCristea | Cristea |
 Vladimir GăitanEng. Andrei Jercan | Eng. Andrei Jercan |
 Sergiu NicolaescuMihai Coman | Mihai Coman |
 Sebastian PapaianiGuriță | Guriță |
 Ileana PopoviciCorina | Corina |
 Emmerich SchäfferEng. Vasilescu | Eng. Vasilescu |
 Mircea AnghelescuEng. Cioranu | Eng. Cioranu |
 Constantin DiplanDuțu Damian | Duțu Damian |
 Alexandru DobrescuSandu | Sandu |
 Aurel GiurumiaDr. Mircea | Dr. Mircea |
 Ernest MafteiGheorghe Aioanei | Gheorghe Aioanei |
 Draga Olteanu MateiNot listed | Not listed |
 Colea RăutuTănase | Tănase |