After Annabelle's Grandfather passes away she is sent to an orphanage. Annabelle soon runs away with two new friends in hopes of returning to her family's farm before it is sold to her greedy neighbour, Bo. Arriving at the farm, Annabelle discovers a new creature has taken up residence - a magical unicorn. As the orphans try to determine the mythical beast's purpose, they are doggedly pursued by Bo and Mother Chloris, the cranky headmaster of the orphanage.