After successfully capturing Rose, John and Cotton plan to extract information on the Grand Rite from her during the planetary alignment with Saturn. Mary assists Mercy in becoming a witch, and initiates her into the hive.

Upon his arrival, feared witch hunter Increase Mather wastes no time taking control of the witch hunt and Salem. Mary fears that Increase will discover her husband has been spelled, and enlists the help of Isaac to deter him from uncovering the truth.