On an autumn Saturday morning, George is packed and ready to get to the Country. But the Man with the Yellow Hat tells George that he's taking a self-improvement class for the semester and the Country will have to wait. George can't believe it! No fall in the Country? George will miss so many things - the trees, the birds, Mrs. Renkins' pies! When leaves from outside blow into the lobby, George gets an idea. What if he could recreate the sights, sounds and smells of the country in his apartment? As George gathers what he needs to bring a little country into the city, he brings a lot of grief to Hundley, who can't pick up the mess fast enough. When Hundley disposes of leaves in the only receptacle he can reach (the toilet!), flooded floors mess up George's perfect scene. Will George's creative vision get The Man with the Yellow Hat and Hundley to the Country, after all? / George loves his fort under the kitchen sink. He can read by flashlight and munch on snacks in his own special space. But something's wrong with the sandwich in a plastic baggie he's been saving there. It's mushy and blue! That's how George learns about mold, a living thing that sometimes grows on food. The Man with the Yellow Hat explains that George shouldn't eat a moldy sandwich, so when George finds blue and smelly cheese in the fridge, he assumes it's bad as well and throws it outside in the compost (lucky for Jumpy!). But George learns too late that some cheeses are supposed to be moldy, and to make matters worse, The Man with the Yellow Hat has invited his favorite teacher over for a stinky cheese and cracker party! Can George combine the leftover (and great-smelling) cheddar cheese with all he's learned about about how mold grows to make his own stinky cheese in time for the special teacher's arrival?