Modern Russia...The war in the Caucasus made them mortal enemies. Ilyas avenged his sister, and tank captain Oleg unwittingly became the culprit of her death. Both warriors died, but higher powers gave them a second chance... June 22, 1941. A bloodied sergeant and lieutenant emerge from the ruins of a bombed-out barracks of the 44th tank regiment of the Red Army. There are Yu-87 dive bombers in the sky, and a wave of armored vehicles with black crosses on the towers is rolling from the border. What to do? Hide, make your way to the east, or engage in an unequal battle? For Oleg, the answer to this question is clear. But Ilyas - no. But the war, which will soon be called the Great Patriotic War, will put everything in its place...