Welcome to Donna Boyajian and her retired horse, Shasta! Shasta, a registered Appaloosa, is at Chestnut Hill for a short stay while Donna and her husband upgrade the barn and paddock on their farm in Petaluma. Upon completion of the construction, Shasta will move to into his permanent digs. In the meantime, he is putting on weight, getting shiny and enjoying hanging out with his old friend Tommy, the Chestnut Hill lesson horse.