When seven-year-old Bean plays a mean trick on her sister, she finds unexpected support for her antics from Ivy, the new neighbor, who is less boring than Bean first suspected.

Everyone in second grade seems set on breaking a world record and friends Ivy and Bean are no exception, deciding to become the youngest people ever to discover a dinosaur skeleton.

Fourth-grader Iggy Frangi and his friends, afraid the principal saw them pulling a big prank, vow to be so good they are invisible, but learn that being too good causes trouble, too.

When classmate Vanessa insists that all single children are spoiled, Ivy wonders whether she can become "unspoiled" by giving away all her clothes at school (which does not go over well with her teacher or parents)--but ultimately decides that all she needs to accomplish her goal is a little sister.