A documentary about the hard work of railwaymen transporting coke from Tarnowskie Góry to Szczecin Iron works. They’re doing their best to arrive on time.
| Directing | Andrzej Munk | Director |
| Writing | Andrzej Munk | Writer |
| Camera | Romuald Kropat | Director of Photography |
| Sound | Jan Krenz | Music |
| Editing | Maria Orłowska | Editor |
| Editing | Jadwiga Zajiček | Editor |
