The other kids party in Grover's house and knock over and break things, have food fights and generally make a mess of the place. TJ's father isn't nice to anyone and is condescending to his wife. Everyone panics, but it turns out he's just faking it in an attempt to escape from the basement. Janet crawls up through the cobweb-filled laundry shoot and several rats show up and crawl down her back. TJ's boa constrictor slithers its way up alongside a sleeping Grover.
Some kids shoot off a model rocket inside the house.
The kids lock their parents in the basement and then nail the door shut. Little Stacy uses a big, high powered nail gun to do the trick. The other kids have a food fight in Grover's house. The kids make a messy concoction of chocolate syrup, peanut butter and marshmallows that they then use a mixer on which throws the goo everywhere. Soon they're spreading it all over themselves and each other.