A werewolf pack on high alert detects a stray pup's scent, ordering a search during a dangerous full moon night. Meanwhile, a human named Nellie, pregnant and caring for her ill son Brady, accepts a lucrative job while haunted by the mystery of Brady's father and illness. At home, her son hides as a pack member arrives with a uniform, revealing Nellie is the chosen one who carries the mark of the Werewolf King, thrusting her into a world she doesn't understand.