A Boston detective arrive in Haven to investigate when Audrey goes missing. Meanwhile, a secret organisation take steps to protect themselves.
A powerful lord learns that Mary was responsible for his son's death and demands retribution. Francis and Lola return to the castle with their newborn son and Kenna pushes Bash to be recognised in his new role.
Lord Condé and Bash investigate after shadowy riders attack a shepherd. As the christening approaches, Mary considers her relationship with Lola and Leith returns to court as Greer takes control of her future.
Francis and Mary take action as the king's madness reaches a fevered pitch, making choices that could change history. Lola endures life-threatening labour.
Kenna fears for her safety after another violent incident with King Henry. Bash investigates the creature in the woods while Mary pushes Lola to marry, and Greer is torn between suitors.