When Grandpa Lou brings home a mini-camper/caravan/trailer(depending where you live), the kids go inside to explore it further. They end up believing that the vehicle is actually a spaceship to take them to the Moon, where Chuckie's toy rocket has apparently landed. Later, in the playpen, Chuckie worries that Stu is angry at him because he's never heard him say "those words" before. Tommy assures Chuckie it's no big deal. With the kids safe and sound, Stu and Didi argue with Lou how dirty his caravan/mini-camper is.