It's 1419 in Prague and things are tense after the death of Czech hero Jan Hus. The corrupt leadership of the city has imprisoned protesters and a radical priest, Jan Zelivsky, is leading a large number of more protesters to the Council House in the old section of town, where the leadership is holed up and where the prisoners are being held. After their arrival, several protesters are killed by stones thrown by those in the house. Enraged, the crowd breaks into the building and several councilors are thrown out of windows and killed, beginning what has become known as the Hussite Revolution. When the king and queen hear about what's happening, the king dies of heart failure and the queen flees the city. The rebels elect Jan Zizka as their leader, but the revolution is still not over.