When a shakeup within the coven leaves Mary with more power than ever, she hatches her most nefarious plan yet to bring the witches closer to achieving the Grand Rite. Alden and Cotton, reeling from the aftermath of their interrogation, question the efficacy of the trials. Alden finds himself weaker by the day, as a victim of Mary's dream spell. Anne makes an eerie discovery about her father's activities. When Increase Mather makes an unanticipated entrance, Salem and its coven faces the arrival of the most feared witch hunter.