It's the 17th century, when social antagonism is at its peak. The poverty of peasants and poor Cossacks is opposed to the lavish lifestyle of the Ukrainian and Polish noblemen, priests, and Cossack officers. Cossacks fight off Tatars’ attacks, however, they start to realise that the real enemy is much closer. Taras Triasylo raises Cossacks to help the rebellious peasants.