Seven-year-old Stink Moody, having discovered that he can get free samples by writing letters of complaint to companies, gets so caught up in his letter writing campaign that he misses his best friend's birthday, but he plans a super surprise to make up for his mistake.

When it is "Backward Day," Judy must turn her usual sour mood upside down and be happy and nice for a change.

When her substitute teacher realizes she is struggling in math, Judy is sent to a math tutor at the local college and soon is completely into the spirit of college life.

Judy's brother Stink, who desperately wants it to snow for Christmas, gets his wish when a new mailman, who knows a lot about weather patterns and has a fondness for the cold, arrives.