When Happy Go Lucky, a young quarter pony, is moved from his home to the stables at Big Apple Barn, endless adventures await him! Happy Go Lucky is excited to share a holly-jolly Christmas with all of his friends. But then Roscoe overhears some bad news. Happy might be sold to a new owner! Would Diane really let someone take him away? Happy and his friends aren't about to wait around and find out. They're going to do whatever they can to keep this holiday merry and bright --- and that means keeping Happy at Big Apple Barn!