In 1812, Napoleon's Army invades Russia. Field Marshal Kutuzov is appointed by the Tsar to defend the land. Kutuzov asks Andrei to join him as a staff officer, but he requests a command in the field. Pierre approaches the battlefield of the upcoming confrontation between the armies during the Battle of Borodino, he volunteers to assist in an artillery battery. Andrei's unit waits in the reserve, but he is hit by a shell and both he and Anatole suffer severe wounds. The battle involves hundreds of thousands of soldiers, thousands of horses, hundreds of cannons firing from both sides. French Army forces the Russian Army to retreat leaving Moscow unprotected. Napoleon advances on Moscow.