As Napoleon marches into Moscow, the Rostovs rush to leave the city.
Napoleon outrages the Russian emperor by marching his army towards Moscow.
Natasha is shocked by Andrei's decision to delay the wedding and travel abroad for a year.
Pierre fights a duel. Natasha and Sonya receive unexpected proposals.
As Andrei prepares for a great battle, Pierre struggles with married life.
Russia is drawn into war with France, changing the lives of three young people forever.