There's a new machine in the Valley! Packer the Delivery Truck is so excited to be working with Bob and his team that he doesn't pay enough attention to getting his job done right. Will Packer be able to set things straight and become a valuable member of the team? Bob has created the perfect kit to build new houses quickly and easily. But when all the new people in the Valley want different designs, Bob doesn't know how to make them all happy. Can Bob design a house that's perfect for whoever wants to live in it?