John Hus travels to the Council of Constance to propose reforms for the Church. Rather than listen to him, the Council tries Hus for heresy and sentences him to be burned him to death. This betrayal and execution prompt further revolt by his followers.
A reformer who became inspired in his work after Lollards, lay followers of John Wycliffe in England, John Hus brought Wycliffe's ideas to Bohemia. Like Wycliffe, Hus condemned the abuses and corruption in the church and argued that the holy scriptures were superior to any human, including clergy and the pope. Thus, anyone who did not strictly obey the Bible - even the pope - should not themselves be obeyed.
Hus eventually became the head of the University of Prague, providing him with a very powerful and very public position from which he could spread his ideas. Over time he acquired the support of not only the King but also many of the people throughout Bohemia. The pope excommunicated him, but that did not stop his preaching or his reform efforts. In fact, the excommunication may have made him more famous and popular.
Because of the conflict, Hus was invited to attend the Council of Constance in 1414, which had been convened specifically to address Hus' arguments. Trusting the pope, Hus agreed to attend, but he is arrested and put in trial. Naturally, he is convicted and burned at the stake, but this failed to stop his ideas and a Bohemia experienced a huge uprising among his supporters.
Hus is now a martyr to a wide variety of movements which have developed in opposition to Church policies. Rome will try to launch a Crusade against Bohemia, just as it has done against the Cathars, but this time they won't be successful. Finally they will have to agree to negotiate and allow the Bohemian church to rejoin the Roman Catholic Church, but only on the condition that some of their distinctive features remain.
Not all of the Bohemians will agree with the compromise and some will remain outside of the church. One group, the Unitas Fratrum or "Union of Brethern" will experience severe persecution and, under the name Moravians, play a role in the Protestant Reformation later on.