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 Russian troops. A special unit is sent to rescue the secret weapon that the Germans can never find - no matter what it takes .
Did You Know?
It was the rockets of the Katyusha that were kept top secret, not the launching rails. The Russian propellant was more efficient than similar German rockets. This movie only has launching rails on the truck, no rockets. See more