Accused of murdering a prominent French Lord, Sarah and Anne flee their home to escape being persecuted for witchcraft. Sarah is captured by the royal guards and escorted to Loudun Prison, the heart of the witch trials. There she awaits her execution, meeting others with the same dismal fate while catching the eye of one of her captors.

While Anne, having gotten away, is busy building an army to aid her in saving Sarah and the prisoners in Loudun, the Bishop and his disciples are hard at work punishing those in the way of his political advances. With new alliances being formed and the Catholic Church being threatened, will these girls be the downfall of an empire built upon fear, or will they suffer the same fate as their Pagan ancestors?