Pierre gets a firsthand look at the war but proves to be largely useless on the battlefield. The battle with Napoleon is fierce and costly for the Russians, but Napoleon is forced to withdraw his army and regroup. Andrei suffers a great injury. Natasha opens up her home to the wounded soldiers as the Rostovs prepare to flee. Pierre is shackled and brought before a French general. In Mytishchi, the Rostovs take shelter at a cottage, and Natasha is unexpectedly reunited with Andrei. Unaware Pierre is held captive and can't answer her wishes to grant her an annulment, Helene cannot hide her pregnancy much longer. Denisov and Dolokhov rescue a band of prisoners, including Pierre, from the French. The harsh winter foils Napoleon, and Kutuzov victoriously chases the French out of Russia.