The Russians won the battle and pushed Casca and his friends back towards Kharkov. When one of their crew died in the retreat, they happened upon a Russian soldier, Yuri, who was in fact a Tartar and no friend of Stalin or his regime, and he joined their crew. Kharkov had to be abandoned and after their tank is destroyed Gus steals another in order for them to reach their own lines.
In the winter snows Manny freezes to death so Yuri takes Manny's duties. Eventually their Tiger tank is abandoned and the four make their way to Vilnius where they are made part of the defense line there. The Soviets break through and Yuri dies at the hands of a Russian officer but Casca kills the enemy soldier in revenge.
As the retreat into Germany proper continues, Gus is arrested for theft and at a railway siding Teacher breaks down when evidence of the concentration camps becomes clear and he guns down a squad of SS men, killing himself and more SS guards with a grenade. Casca saves a Jewish woman from execution by killing a squad of SS men and the two of them harass the execution squads for a while until Casca is captured. He is sent to a castle under guard where he is shocked to find Himmler as well as other members of the Nazi hierarchy are members of the Brotherhood of the Lamb. Casca is sent to Berlin to meet Hitler, another member of the Brotherhood, but with the Russians closing in around Berlin Hitler decided to commit suicide. Casca did the job for him, shooting the Nazi leader dead before fleeing the doomed Fuhrerbunker.