A class visit to the Gross-Me-Out exhibit at the science museum inspires Stink Moody to create a variety of terrible smells to put on the sneakers he plans to enter in the World's Worst Super-Stinky Sneaker contest.

It hasn't snowed on Christmas in Virginia in more than a hundred years, so what are the chances that that will change? Enter the new mailman, Mr. Jack Frost, who not only looks like a jolly old elf but also seems to know a lot about weather patterns, has a fondness for the cold, and works looooooong hours during the holiday season. Plus it's the best time of the year, when strange packages and lots of surprises are swirling around, so isn't it possible...

As Hurricane Elmer hits, Judy, Stink, and the entire Moody clan hunker down and ride out the storm, but when the power goes out, Grandma Lou proposes some activities to pass the time in the dark.