The film takes us back to the summer of 1918 and tells the story of how Voroshilov, under the noses of a 300,000-strong German corps, pulled 80 trains loaded with valuable cargo, materials, ammunition, and equipment out of Donbass. With a 15,000-strong army and 50,000 refugees from Ukraine, occupied by Germany, in Tsaritsyn. It was an unprecedented campaign, unparalleled in world military history, because it involved marching 500 km through territory occupied by the White Cossacks, under the command of some of the most capable tsarist cavalry generals, Mamontov and Fitzhelaurov.