The creative ideas just never stop flowing, and neither does the construction! Andy and Terry have added thirteen brand-new stories to their incredibly wild home, towering an amazing ninety-one levels into the sky. You can now take a dizzying spin in the world's most powerful whirlpool, ride a train that runs on mashed potatoes and gravy, or become the ball in a giant human pinball machine. If you are hungry, grab a submarine sandwich that is the exact size of an actual submarine! With so many fun and dangerous things to do, it is the perfect place to play. But there is a catch: Andy and Terry have been roped into babysitting Mr. Big Nose's three mischievous grandchildren for the entire day. Keeping track of kids is hard enough, but doing it while deciding whether or not to push a mysterious big red button makes it nearly impossible. Discover how much hilarious trouble they can cause before the day is over.