The classic song gets a fresh new twist! The fun begins when Grandma and Grandpa send invitations to their far-flung, modern, and multiracial family: Come to our house for the holidays--and bring your favorite pie! Off everyone goes, driving down snowy roads, riding the train, boarding a plane ... even sailing along in a hot-air balloon. As each family faces an obstacle that delays their trip, they learn that sometimes the most old-fashioned form of transportation works best . . . NEIGH!