The film depicts the struggle for Slovakia and the successful liberation of Ostrava in Northern Moravia.
Crew that worked on film included many significant people of Czech cinematography such as cinematographer Jan Čuřík or director František Vláčil who helped with tank battles.
[2] The film is 93 minutes, in colour, and stars Otomar Krejča, Bedřich Prokoš, Martin Růžek, Július Pántik, Jana Dítětová, Ota Sklenčka, Zdeněk Dítě, Jiří Sovák, Rudolf Deyl ml., Jiri Vala, Miloslav Holub, Miloš Nedbal, Antonin Sura.
The screenplay was written by Jaroslav Klima, directed by Ivo Toman and produced by Československý Armádní Film.
Unusual for war films, it used a variety of authentic armoured vehicles used by both sides, including Russian T-34 and T-34/85s, as well as German Sturmgeschütz III, Panzer IV and a Schwimmwagen.