Based on a true story, the film tells about the famous Soviet rocket launcher nicknamed “Katyusha”, which was kept in great secrecy during World War 2. One of these unique killing machines has drowned during an unexpected retreat of the … Aleksandr Efremov, Sergey Efremov, Evgeny Antropov, Timofey Tribuntsev, Anatoliy Gushchin, Polya Polyakova, Azamat Nigmanov Added on Amazon Prime 2022-08-04. Youtube Trailer