Ukraine. The end of the XV century. All gunpowder made in factories suddenly disappears. The company of cossacks led by Maksym Trytuz comes together to find one of the transports that carries gunpowder to the Zaporozhian Sich.
At the beginning of the XVII century, events take place preceding the liberation struggle led by Bohdan Khmelnytsky. A young boy Pavlo Pokhylenko leaves his native Kaniv to join the Zaporizhian Sich (camp and cossack army) to fight for freedom and the Orthodox faith.
A new shipyard director arrives in the city. New orders began at the factory, but, unfortunately, the new leader had flaws: there was something unusually tough, callous in his attitude to people ...