Lovably rambunctious monster siblings Natalie and Alphonse are excited to go camping in the wilds of nature -- without leaving their apartment. Most of the time, Natalie and Alphonse like living in an apartment on the seventh floor. They have bunk beds to drive, a big green chair to hide behind and yell "Raaaar!," sunflowers on the balcony to water, and almost enough hallway space for tumbling. But when they pretend to be wiggly worms crawling across the jungle . . . SHFLWUMP! Ow! That is not a good game for indoors! How can they explore the joys of nature in the middle of the city?