In 4th-century Gallaecia, Priscillian gathers a Christian community in the forest to celebrate nature, equality between men and women, and the reading of the Gospels. The influence of this mystical and democratic thought, shared by Procula, Eucrocia, and their disciples, challenges the Church hierarchy and arouses the hostility of bishops Hydatius and Ithacius. Following the failure of the Council of Saragossa, Priscillian is elevated to Bishop of Ávila. Excommunicated, he seeks justice in Rome from Pope Damasus, but political shifts leave him unprotected. Tried and condemned for heresy, he is beheaded in Trier along with his companions. His body is secretly returned to Gallaecia, where his martyrdom turns into a legend and a symbol of spiritual freedom, at the very site where the Cathedral of Santiago de Compostela would later be built.