Miranda did not put adventure on her Christmas list, but thanks to her eighty-five-year-old neighbor Joy, that's exactly what she's getting this year. When Joy tells Miranda that she plans to drive an old RV decked out in Christmas decorations from their Chicago neighborhood to her new retirement digs in Phoenix--in the dead of winter, no less--the much younger Miranda insists that Joy cannot make such a trip by herself. Besides, a crazy trip with...