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.

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

Frustrated because the rules for her class's Pet Day will not let her take her dog to school, Junie B. Jones considers taking a raccoon, a worm, a dead fish, and other unusual replacements.