Yesterday's Leningrad schoolgirl Masha Yablochkina, after a fierce blockade winter of 1941-1942, comes to the railway courses hoping to survive and gain strength. From there, the girl is sent to the construction of the Shlisselburg highway, which connects the city with the mainland and is in direct sight of German artillery. So the heroine gets into the 48th locomotive column of the special reserve NKPS, which, at the cost of the deadly risk, will have to deliver 75% of all cargo and military equipment to Leningrad.
| Directing | Fyodor Popov | Director |
| Production | Fyodor Popov | Producer |
| Writing | Fyodor Popov | Screenplay |
| Writing | Dmitry Karalis | Screenplay |
| Camera | Maxim Shinkorenko | Director of Photography |
| Camera | Igor Grinyakin | Director of Photography |
| Sound | Andrey Golovin | Original Music Composer |
| Editing | Alexandr Khachko | Editor |
| Production | Alexandr Brovarets | Co-Producer |
| Art | Oleksandr Batieniev | Production Design |
| Costume & Make-Up | Sergey Struchev | Costume Designer |
| Sound | Yuri Reinbakh | Sound Director |
| Production | Viktoriya Leshchenko | Executive Producer |
| Writing | Lala Rustamova | Creative Producer |
| Visual Effects | Valery Hayrapetyan | Digital Compositor |
| Visual Effects | Eduard Kargin | Visual Effects Supervisor |
| Visual Effects | Alexander Volos | Visual Effects Supervisor |
| Production | Alexander Delvig | Executive Producer |