Mary decides it's all right to cheat to make sure she wins a special lunch with her favorite teacher, but the results of her dishonesty end up surprising the whole second-grade class.
When Ray decides to throw a party for his ninth birthday, in competition with another boy with the same birthday and more money, he asks his best friend Herbie to help him find an idea that is new, exciting, and free.
Miss Mackle's third graders share December holiday traditions--Christmas, Hanukkah, Kwanzaa, Three Kings Day, and Korean New Year--with each other and with Harry's great grandfather, who has just moved to a nursing home.
Doug discovers that though being Harry's best friend in Miss Mackle's second grade class isn't always easy, as Harry likes to do horrible things, it is often a lot of fun.
On the last day of second grade, Song Lee's party at the local amusement park forces Harry to face his fear of elevators when he is expected to ride the Drop of Doom.