Mary must act quickly in order to prevent Increase from undoing the spell placed on her husband. Mercy and her followers prove themselves useful to the greater cause, and Cotton mourns over the banishment of Gloriana.

With the help of Issac, Mary devises a plan that she hopes will rid her of both Mercy and Increase. John has been falsely accused of witchcraft and awaits trial, while Anne learns a dark truth about her heritage from her father.