In this episode, Jo heads to Ponte Vedra to help Jonathan (26) and Joanne Hennon (24) take back control from their son. Joshua (4) rules the roost by hitting, kicking, biting, drawing on the walls and screaming when things don't go his way. Joanne fears that Joshua's behavior will have an effect on his newborn sister Jamie (12 weeks old). Can Jo nip this behavior in the bud? Or will Joshua send her away?