As Christmas approaches, Amy recalls another Christmas when her mom was alive and she was training Sundance, the rambunctious and talented pony who helped Amy discover her gift for healing. It's December, and Amy can't help but remember the last holiday she spent with her mother. Back then, Amy was training Sundance, the feisty pony they had rescued from an auction. While Sundance had proven to be a talent in the show ring, he was still impossible...