When a puppy who is being trained as a police dog goes missing, third-grader Judy forms a detective agency to solve the mystery, imitating her literary heroine, Nancy Drew.

"The lucky penny in Judy Moody's pocket sure does seem to be working. She can't stop winning-at bowling, spelling, the unbeatable Prize Claw, everything! For sure and absolute positive, she'll ride that wave of good fortune all the way to Washington, D.C."--

Stink Moody, friends Webster and Sophie, and Mrs. Birdwistle visit tourist attractions in Virginia as they try to give away 101 guinea pigs rescued from a laboratory, although Stink is very reluctant to relinquish his favorite, Astro.

After second-grader Stink gets an unsatisfactory grade in physical education, his parents tell him he must play a sport and so he masters thumb wrestling, as seen on a sports channel.

Stink may be super smart and Stink may be uber-clever, but he's been in Polliwog swim class for what seems like frog-ever and still can't bear to put his face in the water.

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

Seven-year-old Stink Moody discovers that he can get free samples by writing letters to candy companies and plans a surprise for his best friend's birthday.

When nine-year-old Tess invites her friends, family, and neighbors to celebrate her beloved maple tree's life before it must be cut down, she learns that it has meant a lot to other people, as well.

Judy and Stink prepare for this year's "Turkey Trot," with the main prize being a juicy turkey, but they worry that if they don't win, the family won't have a Thanksgiving meal.

During a weekend trip to Ocracoke Island, siblings Judy and Stink Moody take part in a pirate treasure-hunting game, in which various clues lead them to silver coins, or "pieces of eight," hidden across the island.