When all the second grade students must enter the science fair, which has global warming as its theme, best friends Ivy and Bean team up to create an unusual project.
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.
Ivy and Bean decide to be good, kind, and pure of thought in the hopes that the wild animals will befriend them, but when their plan doesn't work, they decide sometimes it's good to be a little bad.
After watching a movie about a detective on the television, Bean decides to set up shop as a private investigator--and she and Ivy start looking for mysteries to solve.
Bean wasn't interested in making friends with Ivy, the new girl across the street, until she plays a trick on her sister and needs a place to hide out.
When all the second grade students must enter the science fair, which has global warming as its theme, best friends Ivy and Bean team up to create an unusual project.