In the middle of the 17th century, Ukrainian peasants and Cossacks rose up to fight against the Polish gentry rule. About the events of the National Liberation War in Ukraine under the leadership of Bohdan Khmelnitsky, who with a firm hand led the insurgent masses to an alliance with Russia.

648. Ukraine under the oppression of Poland. Polish nobility committing outrage, burning villages one after another. Hetman of Zaporozhian Cossacks Bohdan Khmelnytskyi gathers the army of defenders of the motherland.